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Transportation

Why Didn't Sidecar's Flex Pricing Work? 189

Posted by samzenpus
from the you-get-what-you-pay-for dept.
Bennett Haselton writes Sidecar is a little-known alternative to Lyft and Uber, deployed in only ten cities so far, which lets drivers set their own prices to undercut other ride-sharing services. Given that most amateur drivers would be willing to give someone a ride for far less than the rider would be willing to pay, why didn't the flex-pricing option take off? Keep reading to see what Bennet has to say.
Twitter

Twitter Should Use Random Sample Voting For Abuse Reports 132

Posted by samzenpus
from the tell-us-everything dept.
Bennett Haselton writes: Twitter has announced new protocols for filing and handling abuse reports, making it easier to flag specific types of content (e.g. violence or suicide threats). But with the volume of abusive tweets being reported to the company every day, the internal review process will always be a bottleneck. The company could handle more abuse reports properly by recruiting public volunteers. Read what Bennett thinks below.

Comment: Re:So close, so far (Score 1) 561

by u38cg (#48513643) Attached to: "Barbie: I Can Be a Computer Engineer" Pulled From Amazon

There are colleges where men are just assumed guilty of any charge of sexual assault, and cannot even question their accusers in the adjudication process

I might have more of a problem with that if it didn't lead, on average, to more cases getting decided correctly.

Equality of outcome, equality of opportunity. Neither is perfect. Enjoy your male tears.

Comment: Re:reflexes? (Score 1) 114

by u38cg (#48416111) Attached to: Major Brain Pathway Rediscovered After Century-old Confusion, Controversy
Requirements vary quite a lot between country. The UK is one of the strictest - corrected vision must be a certain standard in both eyes. In the US, some states allow people the UK would class as legally blind to drive. Some of these folk use miniature telescopes strapped to their eyes to see with - needless to see, field of view with these things is pretty small.
Math

Big Talk About Small Samples 246

Posted by samzenpus
from the read-all-about-it dept.
Bennett Haselton writes: My last article garnered some objections from readers saying that the sample sizes were too small to draw meaningful conclusions. (36 out of 47 survey-takers, or 77%, said that a picture of a black woman breast-feeding was inappropriate; while in a different group, 38 out of 54 survey-takers, or 70%, said that a picture of a white woman breast-feeding was inappropriate in the same context.) My conclusion was that, even on the basis of a relatively small sample, the evidence was strongly against a "huge" gap in the rates at which the surveyed population would consider the two pictures to be inappropriate. I stand by that, but it's worth presenting the math to support that conclusion, because I think the surveys are valuable tools when you understand what you can and cannot demonstrate with a small sample. (Basically, a small sample can present only weak evidence as to what the population average is, but you can confidently demonstrate what it is not.) Keep reading to see what Bennett has to say.

If entropy is increasing, where is it coming from?

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