A new study in Frontiers in Psychology examined why people struggle so much to solve statistical problems, particularly why we show a marked preference for complicated solutions over simpler, more intuitive ones. Chalk it up to our resistance to change. From a report: The study concluded that fixed mindsets are to blame: we tend to stick with the familiar methods we learned in school, blinding us to the existence of a simpler solution. Roughly 96 percent of the general population struggles with solving problems relating to statistics and probability. Yet being a well-informed citizen in the 21st century requires us to be able to engage competently with these kinds of tasks, even if we don't encounter them in a professional setting. "As soon as you pick up a newspaper, you're confronted with so many numbers and statistics that you need to interpret correctly," says co-author Patrick Weber, a graduate student in math education at the University of Regensburg in Germany. Most of us fall far short of the mark.

Part of the problem is the counterintuitive way in which such problems are typically presented. Meadows presented his evidence in the so-called "natural frequency format" (for example, 1 in 10 people), rather than in terms of a percentage (10 percent of the population). That was a smart decision, since 1-in-10 a more intuitive, jury-friendly approach. Recent studies have shown that performance rates on many statistical tasks increased from four percent to 24 percent when the problems were presented using the natural frequency format.

Kashmir Hill, reporting for Gizmodo: Last week, I ran an ad on Facebook targeted at a computer science professor named Alan Mislove. Mislove studies how privacy works on social networks and had a theory that Facebook is letting advertisers reach users with contact information collected in surprising ways. I was helping him test the theory by targeting him in a way Facebook had previously told me wouldn't work. I directed the ad to display to a Facebook account connected to the landline number for Alan Mislove's office, a number Mislove has never provided to Facebook. He saw the ad within hours.

One of the many ways that ads get in front of your eyeballs on Facebook and Instagram is that the social networking giant lets an advertiser upload a list of phone numbers or email addresses it has on file; it will then put an ad in front of accounts associated with that contact information. A clothing retailer can put an ad for a dress in the Instagram feeds of women who have purchased from them before, a politician can place Facebook ads in front of anyone on his mailing list, or a casino can offer deals to the email addresses of people suspected of having a gambling addiction. Facebook calls this a "custom audience." You might assume that you could go to your Facebook profile and look at your "contact and basic info" page to see what email addresses and phone numbers are associated with your account, and thus what advertisers can use to target you. But as is so often the case with this highly efficient data-miner posing as a way to keep in contact with your friends, it's going about it in a less transparent and more invasive way.

[...] Giridhari Venkatadri, Piotr Sapiezynski, and Alan Mislove of Northeastern University, along with Elena Lucherini of Princeton University, did a series of tests that involved handing contact information over to Facebook for a group of test accounts in different ways and then seeing whether that information could be used by an advertiser. They came up with a novel way to detect whether that information became available to advertisers by looking at the stats provided by Facebook about the size of an audience after contact information is uploaded. They go into this in greater length and technical detail in their paper [PDF]. They found that when a user gives Facebook a phone number for two-factor authentication or in order to receive alerts about new log-ins to a user's account, that phone number became targetable by an advertiser within a couple of weeks. Officially, Facebook denies the existence of shadow profiles. In a hearing with the House Energy & Commerce Committee earlier this year, when New Mexico Representative Ben Lujan asked Facebook CEO Mark Zuckerberg if he was aware of the so-called practice of building "shadow profiles", Zuckerberg denied knowledge of it.

Here's an analysis of the Linux kernel repository that attempts to find some fresh numbers on the current kernel development trends. He writes: The kernel repository is at 782,487 commits in total from around 19.009 different authors. The repository is made up of 61,725 files and from there around 25,584,633 lines -- keep in mind there is also documentation, Kconfig build files, various helpers/utilities, etc. So far this year there has been 49,647 commits that added 2,229,836 lines of code while dropping 2,004,759 lines of code. Or a net gain of just 225,077 lines. Keep in mind there was the removal of some old CPU architectures and other code removed in kernels this year so while a lot of new functionality was added, thanks to some cleaning, the kernel didn't bloat up as much as one might have otherwise expected. In 2017 there were 80,603 commits with 3,911,061 additions and 1,385,507 deletions. Given just over one quarter to go, on a commit and line count 2018 might come in lower than the two previous years.

Linus Torvalds remains the most frequent committer at just over 3% while the other top contributions to the kernel this year are the usual suspects: David S. Miller, Arnd Bergmann, Colin Ian King, Chris Wilson, and Christoph Hellwig. So far in 2018 there were commits from 3,320 different email addresses. This is actually significantly lower than in previous years.

InfoWorld described the move as a "breakthrough": As expected, Python has climbed into the Top 3 of the Tiobe index of language popularity, achieving that milestone for the first time ever in the September 2018 edition of the index. With a rating of 7.653 percent, Python placed third behind first-place Java, which had a rating of 17.436 percent, and second-place C, rated at 15.447. Python displaced C++, which finished third last month and took fourth place this month, with a rating of 7.394 percent...

Python also has been scoring high in two other language rankings:

- The PyPL Popularity of Programming Language index, where it ranked No. 1 this month, as it has done before, and has had the most growth in the past five years.

- The RedMonk Programming Language Rankings, where Python again placed third.
Tiobe notes that Python's arrival in the top 3 "really took a long time," since it first entered their chart at the beginning of the 1990s. But today, "It is already the first choice at universities (for all kinds of subjects for which programming is demanded) and is now also conquering the industrial world." In February Tiobe also added a new programming language to their index: SQL. (Since "SQL appears to be Turing complete.")

"Other interesting moves this month are: Rust jumps from #36 to #31, Groovy from #44 to #34 and Julia from #50 to #39."

"The JavaScript world could use a bit of classification," reads this year's announcement at StateofJS.com: In 2017 this survey helped us do just that, by collecting data from over 20,000 developers to identify current and upcoming trends. This year, we're asking for your help once more to find out which libraries developers want to learn next, which have the best satisfaction ratings, and much more.
The survey launched in 2016 "mostly to scratch my own itch," its founder explained in a Medium essay. "I wanted to know what libraries were worth learning, and which ones were on the way out." Last year's survey discovered that React was the dominant framework, though the second most-popular framework was "none," with 9,493 JavaScript developers saying they didn't use one. Vue had increased in popularity while Angular lost steam, and developers collectively rating their overall happiness with front-end tools at 3.8 (on a scale up to five).

And more than 28% of the survey's respondent's said they'd used TypeScript, Microsoft's typed superset of JavaScript, and that they'd use it again.

The IRS recently ruled that under some circumstances employers can link their 401(k) matching contributions to the amount of an employee's student loan repayments -- making it easier for recent graduates to take advantage of this employer benefit. But that's one spot of good news in a sea of bad, according to one anonymous Slashdot reader: Two new articles criticize America's student loan policies (under both the Obama and Trump administrations). CNBC cites reports that within six years, more than 15% of student borrowers had officially defaulted, while 10% more had stopped making payments and another 4.8% were at least 90 days late. And for-profit colleges fared even worse, where nearly 25% of graduates defaulted, and a total of 44% faced "some form of loan distress."

These trends were masked by Department of Education reports which stopped tracking repayment rates after just three years (reporting defaults rates of just 10%), according to Ben Miller, senior director for post-secondary education at the left-leaning Center for American Progress. "Official statistics present a relatively rosy picture of student debt. But looking at outcomes over more time and in greater detail shows that hundreds of thousands more borrowers from each cohort face troubles repaying."

theodp writes: In an obituary of sorts for the standard probability tables that were once ubiquitous in introductory statistics textbooks, Rick Wicklin writes: "In my first probability and statistics course, I constantly referenced the 23 statistical tables (which occupied 44 pages!) in the appendix of my undergraduate textbook. Any time I needed to compute a probability or test a hypothesis, I would flip to a table of probabilities for the normal, t, chi-square, or F distribution and use it to compute a probability (area) or quantile (critical value). If the value I needed wasn't tabulated, I had to manually perform linear interpolation from two tabulated values. I had no choice: my calculator did not have support for these advanced functions. In contrast, kids today have it easy! When my son took AP statistics in high school, his handheld calculator (a TI-84, which costs about $100) could compute the PDF, CDF, and quantiles of all the important probability distributions. Consequently, his textbook did not include an appendix of statistical tables."

An anonymous reader quotes CryptoCoinsNews: Over the past 24 hours, the crypto market has recorded a loss of $18 billion, as major cryptocurrencies including Bitcoin, Ether, EOS, and Bitcoin Cash dropped by 4 to 13 percent. While Bitcoin ended the day with a 4 percent decline in its value, Ether, the native cryptocurrency of Ethereum, plummeted by 13 percent against the US dollar, becoming one of the worst performing major cryptocurrencies alongside NEO. Tokens recorded the steepest drop in their value on August 11, as most Ethereum-based tokens such as Theta Token, Aion, Pundi X, Aelf, DigixDAO, WanChain, and VeChain recorded a drop of around 14 to 18 percent

For the first time in 2018, Bitcoin, the most dominant cryptocurrency in the global market, has obtained 50 percent of the market share, securing its year-to-date (YTD) high on the dominance index. The sudden increase in the dominance index of Bitcoin which coincided with the spike in the volume of Tether have demonstrated that investors have become reluctant towards taking high-risk and high-return trades, mostly due to the lack of confidence in the short-term trend of the market. Over the past few weeks, tokens have lost over 50 percent of their value against Bitcoin, which has also fallen by more than 20 percent since late July.
"During this 13-day stretch, the total market cap for all cryptocurrencies has fallen $70 billion," reports MarketPlace, in an article headlined "Bitcoin looks 'very sick' and the pain is not over, says analyst."

Piriform, the maker of CCleaner, has pulled v5.45 of its suite from the website after users expressed concerns over the privacy changes in the application, the company, which was acquired by Avast last year, said. In v5.45, the company made it impossible to disable "active monitoring", and the privacy settings had been removed for free customers. Additionally, as BetaNews reported earlier this week, Avast also made it impossible for users to quit the software. Addressing these concerns, Avast said, "Today we have removed v5.45 and reverted to v5.44 as the main download for CCleaner while we work on a new version with several key improvements." The company added: We're currently working on separating out cleaning functionality from analytics reporting and offering more user control options which will be remembered when CCleaner is closed. We're also creating a factsheet to share which will outline the data we collect, for which purposes and how it is processed. [...] As stated before, we'll split cleaning alerts (which don't send any data) from UI trend data (which is anonymous and only there to measure the user experience) and provide a separate setting for each in the user preferences. Some of these features run as a separate process from the UI: we'll restore visibility of this in the notifications area, and you'll be able to close it down from that icon menu as before. We understand the importance of this to you all. This work is our number 1 priority and we are taking the time to get it right in the next release. There are numerous changes required, so that does mean it will take weeks, not days. While we work on this, we have removed version 5.45 and reinstated version 5.44. According to stats shared by the company, CCleaner has been downloaded over two billion times. In a week, it is estimated to see five million downloads.

As the U.K. begins a two-week heat wave, one pedestrian apparently found his leg sinking into tarmac, which had melted, requiring a call to emergency rescue services.

"All-time heat records have been set all over the world during the past week," reports the Washington Post, in an article titled "Red-Hot Planet," which they've updated throughout the week with new all-time heat records. From the normally mild summer climes of Ireland, Scotland and Canada to the scorching Middle East to Southern California, numerous locations in the Northern Hemisphere have witnessed their hottest weather ever recorded over the past week.... The Canadian Broadcasting Corporation reports the heat is to blame for at least 54 deaths in southern Quebec, mostly in and near Montreal, which endured record high temperatures. In Northern Siberia, along the coast of the Arctic Ocean -- where weather observations are scarce -- model analyses showed temperatures soaring 40 degrees above normal on July 5, to over 90 degrees...

On Thursday, Africa likely witnessed its hottest temperature ever reliably measured. Ouargla, Algeria soared to 124.3 degrees (51.3 Celsius). If verified, it would surpass Africa's previous highest reliable temperature measurement of 123.3 degrees (50.7 Celsius) set July 13, 1961, in Morocco. No single record, in isolation, can be attributed to global warming. But collectively, these heat records are consistent with the kind of extremes we expect to see increase in a warming world.
Nasdaq Inc. even warned customers that high humidity in New Jersey was slowing the radio transmissions needed for high-speed trading, according to an article shared by Slashdot reader narcoossee. And Southern California has also experienced record-setting temperatures "well above 110 degrees across the region," sparking brush fires that burned homes in two counties.

Last July several U.S. cities experienced their hottest month ever, including Reno, Salt Lake City, and Miami. And Death Valley, California maintained an average temperature of 107.4 degrees for an entire month, the hottest month ever recorded on earth. "The temperature didn't fall below 89 degrees at any point in the month of July at Death Valley," reports the Washington Post, adding "On three nights, the 'low' temperature was 102-103 degrees."

And last month the Middle East city Quriyat (in Oman) endured more than two full days in which the temperature never dropped below 108.7 degrees.

A recently discovered hole in Valve's API allowed observers to generate extremely precise and publicly accessible data for the total number of players for thousands of Steam games. While Valve has now closed this inadvertent data leak, Ars can still provide the data it revealed as a historical record of the aggregate popularity of a large portion of the Steam library. From the report: The new data derivation method, as ably explained in a Medium post from The End Is Nigh developer Tyler Glaiel, centers on the percentage of players who have accomplished developer-defined Achievements associated with many games on the service. On the Steam web site, that data appears rounded to two decimal places. In the Steam API, however, the Achievement percentages were, until recently, provided to an extremely precise 16 decimal places.

This added precision means that many Achievement percentages can only be factored into specific whole numbers. (This is useful since each game's player count must be a whole number.) With multiple Achievements to check against, it's possible to find a common denominator that works for all the percentages with high reliability. This process allows for extremely accurate reverse engineering of the denominator representing the total player base for an Achievement percentage. As Glaiel points out, for instance, an Achievement earned by 0.012782207690179348 percent of players on his game translates precisely to 8 players out of 62,587 without any rounding necessary (once some vagaries of floating point representation are ironed out). Ars has shared the Achievement-derived player numbers in their report; there's also a handy CSV file. Some of the titles with the most total unique players include Team Fortress 2 (50,191,347 player estimate), Counter-Strike: Global Offensive (46,305,966 player estimate), PLAYERUNKNOWN'S BATTLEGROUNDS (36,604,134 player estimate), Unturned (27,381,399 player estimate), and Left 4 Dead 2 (23,143,723 player estimate).

97% of us don't wash our hands properly, a new government study concludes. An anonymous reader quotes CNN: The study from the U.S. Department of Agriculture shows most consumers failed to wash their hands and rub with soap for 20 seconds. That's the amount of time recommended by the Centers for Disease Control and Prevention, which says that washing for shorter periods means fewer germs are removed. "Numerous" study participants also didn't dry their hands with a clean towel.

The study involved 383 people in six test kitchen facilities in the metro Raleigh-Durham area of North Carolina and in rural Smithfield, North Carolina, the USDA said... About half the time, participants spread bacteria to spice containers while preparing burgers, and 11% of the time, they spread bacteria to refrigerator handles... The results from the USDA's study indicate our hand-washing habits may be getting worse. A study done in 2013 by Michigan State University found only 5% of people washed their hands correctly....

A separate study released this month found 49 of 100 towels tested showed growth of bacteria normally found in or on the human body.
CNN helpfully provides the proper method for handwashing. (Wet hands, lather them with soap -- between fingers and under fingernails -- and then scrub for at least 20 seconds.) They recommend singing the alphabet song once or "Happy Birthday" twice.

Just in America, foodborne illnesses sicken 48 million people each year, sending 128,000 to hospitals and resulting in 3,000 deaths.

Canonical introduced Ubuntu Hardware/Software Survey in Ubuntu 18.04 and has since been collecting data (it is optional, and users' consent is taken; Ubuntu says 67 percent users opted in to the survey). Now for the first time, it is revealing the stats, shedding light on how Ubuntu users like things around. The takeaways from the result: Installation Duration: The average install of Ubuntu Desktop takes 18 minutes. Some machines out there can install a full desktop in less than 8 minutes!
Installer Options: Another interesting fact is that the newly introduced Minimum Install option is being used by a little over 15% of our users. This is a brand new option but is already attracting a considerable fanbase.
CPU Count: A single CPU is most common, and this is not very surprising. We haven't broken this down to cores but is something we will look in to.
Disk Partitioning Schemes: Most people choose to wipe their disks and reinstall from scratch. The second most common option is a custom partition table.
Display: Full HD (1080p) is the most popular screen resolution, followed by 1366 x 768, a common laptop resolution. HiDPI and 4k are not yet commonplace.

An anonymous reader quotes SD Times Java remains the most popular primary programming language, but JavaScript is the most used programming language overall. That is according to a recently released report from JetBrains on the State of the Developer Ecosystem in 2018. The report surveyed more than 6,000 developers from 17 countries to reveal the trends driving the world of coding this year... According to the report, Java, JavaScript and Python are the top three programming languages this year, and Go is the most promising language. Twenty percent of developers use multiple versions of Go at the same time, and 26 percent set up their GOPATH per project. The top Go frameworks include Gin, Beego, Echo and Buffalo.

While 38 percent of developers have no plans to adopt any new languages this year, the top languages respondents have started to learn in the last year include Python, JavaScript, Java, Go, TypeScript and Kotlin... Eighty-two percent of respondents use IDEs while 69 percent use editors. Of those using IDEs and editors, only 12 percent cited that they don't customize their IDE/editors. In addition, 77 percent use the dark theme for their editor or IDE... Some fun facts about developers include 77 percent listen to music while they are coding; the top music to listen to includes electronic, pop and rock; 53 percent sleep seven to eight hours a night; 85 percent code on the weekends; and 57 percent prefer coffee over tea.

According to Alexa, the Amazon-owned web traffic analyzing platform, more people now visit Reddit than Facebook in the US. From a report: Spotted, of course, on Reddit by user IamATechieNerd, the stats will be a big boost for the social sharing platform, especially with many users still irked about the recent re-design. It's important to note that analyzing web traffic using a tool like Alexa is not an exact science, but it's interesting that it has now put Reddit ahead of Facebook. If the stats are to be believed, Google is still the most visited site, followed by YouTube, Reddit, and Facebook, with Amazon rounding out the top five.

Wolfrider writes: Backblaze's hard drive report for the first quarter 2018 makes very interesting reading for anyone who is interested in hard drive performance and reliability. As of March 31, 2018, the company had 100,110 hard drives working for it, made up of 1,922 boot drives and 98,188 data drives, ranging from 3TB WDC WD30EFRX drives all the way up to 10TB and 12TB Seagate ST10000NM0086 and ST12000NM0007 drives, along with 10 Samsung 850 EVO SSDs. [...] The overall Annualized Failure Rate (AFR) for Q1 sat at just 1.2 percent, well below the Q4 2017 AFR of 1.65 percent. Some drives had an AFR of 0 percent (in other words, no drives failed during the period), while the 4TB Seagate ST4000DM000 had the highest AFR of 2.3 percent (out of 30,941 drives the company had in service, 178 failed during the Q1 period).

Digital currency exchange Coinbase announced today that it has acquired Earn.com, a portal that allows people to make money by answering emails or completing other tasks. Coinbase did not disclose the terms of the deal but according to Recode, the offer was more than $100 million. As part of the acquisition, the crypto company will bring on Earn's founder and CEO Balaji Srinivasan as its first-ever chief technology officer. From the report: Srinivasan will act as "technological evangelist" for both the industry, and for Coinbase in his new role, the company said. "Balaji has become one of the most respected technologists in the crypto field and is considered one of the technology industry's few true originalists," Coinbase CEO Brian Armstrong said in a blog post Monday. Srinivasan holds a BS, MS, and PhD in Electrical Engineering and an MS in Chemical Engineering from Stanford University, and has taught courses in data mining, stats, genomics, blockchain at his alma mater. He will also be responsible for recruiting more talent, an effort that the San Francisco-based company has beefed up in recent months.

An MIT study using data from more than 1,100 Uber and Lyft drivers concluded they're earning a median pretax profit of just $3.37 per hour. But now Reuters reports: Uber Chief Executive Dara Khosrowshahi criticized the MIT study in a tweet on Friday as "Mathematically Incompetent Theories (at least as it pertains to ride-sharing)," and linked to a response by Uber chief economist Jonathan Hall that challenged the study's methodology. Hall's rebuttal to the study said the likely misinterpretation of a survey question and the study's "inconsistent logic" produced a wage result that was below similar studies elsewhere. He said the study used a "flawed methodology" compared with a survey that found drivers' average hour earnings were $15.68. "The earnings figures suggested in the paper are less than half the hourly earnings numbers reported in the very survey the paper derives its data from," wrote Hall.

The MIT study's lead author, Stephen Zoepf, told Reuters in an email on Saturday, "I can see how the question on revenue might have been interpreted differently by respondents" and called Hall's rebuttal thoughtful. "I'm re-running the analysis this weekend using Uber's more optimistic assumptions and should have new results and a public response acknowledging the discrepancy by Monday," he wrote.
Saturday Uber's CEO tweeted a thank-you to MIT, "for listening and revisiting this study and its findings. Right thing to do."

According to Gartner, global sales of smartphones have declined year-on-year for the first time since the research company started tracking the global smartphone market in 2004. "Global sales of smartphones to end users totaled nearly 408 million units in the fourth quarter of 2017, a 5.6 percent decline over the fourth quarter of 2016," reports Gartner. The Register reports: In Gartner's Q4 sales stats, Samsung maintained a narrow lead in global volume shipments of smartphones -- but every major (top five) vendor outside of those based in China saw unit shipments slip. Several major factors caused the market shrinkage, said Anshul Gupta, research director at Gartner. "First, upgrades from feature phones to smartphones have slowed right down due to a lack of quality 'ultra-low-cost' smartphones and users preferring to buy quality feature phones. Second, replacement smartphone users are choosing quality models and keeping them longer, lengthening the replacement cycle of smartphones. Moreover, while demand for high quality, 4G connectivity and better camera features remained strong, high expectations and few incremental benefits during replacement weakened smartphone sales," Gupta added. This is a characteristic of the emerging markets, where all the action is -- not mature markets like the UK or USA. Samsung leap-frogged Apple by virtue of its sales declining slower than the market average -- Sammy's numbers were 3.6 per cent to 74.02 million units.

An anonymous reader quotes a report from Wired: In the wake of Wednesday's Parkland, Florida school shooting, which resulted in 17 deaths, troll and bot-tracking sites reported an immediate uptick in related tweets from political propaganda bots and Russia-linked Twitter accounts. Hamilton 68, a website created by Alliance for Securing Democracy, tracks Twitter activity from accounts it has identified as linked to Russian influence campaigns. On RoBhat Labs' Botcheck.me, a website created by two Berkeley students to track 1500 political propaganda bots, all of the top two-word phrases used in the last 24 hours -- excluding President Trump's name -- are related to the tragedy: School shooting, gun control, high school, Florida school. The top hashtags from the last 24 hours include Parkland, guncontrol, and guncontrolnow.

While RoBhat Labs tracks general political bots, Hamilton 68 focuses specifically on those linked to the Russian government. According to the group's data, the top link shared by Russia-linked accounts in the last 48 hours is a 2014 Politifact article that looks critically at a statistic cited by pro-gun control group Everytown for Gun Safety. Twitter accounts tracked by the group have used the old link to try to debunk today's stats about the frequency of school shootings. Another top link shared by the network covers the "deranged" Instagram account of the shooter, showing images of him holding guns and knives, wearing army hats, and a screenshot of a Google search of the phrase "Allahu Akbar." Characterizing shooters as deranged lone wolves with potential terrorist connections is a popular strategy of pro-gun groups because of the implication that new gun laws could not have prevented their actions. Meanwhile, some accounts with large bot followings are already spreading misinformation about the shooter's ties to far-left group Antifa, even though the Associated Press reported that he was a member of a local white nationalist group. The Twitter account Education4Libs, which RoBhat Labs shows is one among the top accounts tweeted at by bots, is among the prominent disseminators of that idea.