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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 245

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.

Comment: Re:Life insurance vs life expectancy (Score 1) 68

by u38cg (#48336453) Attached to: Life Insurance Restrictions For Space Tourists
Half right. You must be upfront about what you do and intend to do at the time of underwriting, but if you then take up chain-smoking while surfing on a shark, that's your business. The insurer absorbs that as normal mortality. To put it in perspective, the biggest life policies are on the order of GBP50-100m (Warren Buffet types), and the industry absorbs one or two claims of this size every year. The real risk here is aggregation risk, the fact that you'll have a dozen millionaires on these flights. That's not an issue for the insurers, really, but it is for the reinsurers and their retro pools. But even losing the top ten insured lives is smaller than a billion dollar cat which again, is barely a rounding error in reinsurance.

Things equal to nothing else are equal to each other.

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