123 reputation
4
bio website unur.com
location Ithaca, NY
age 44
visits member for 3 years, 11 months
seen May 14 at 22:00

Programming is fun again with Perl.

All original source snippets I post on Stackoverflow.com and other sites in the StackExchange network are dedicated to the public domain.

I also post my thoughts on economics, politics and strategy on and programming related articles on ν42.


May
14
revised Why is cos(90)=0.4 in WebGL?
Fix spelling of summarize
May
14
suggested suggested edit on Why is cos(90)=0.4 in WebGL?
Feb
11
awarded  Teacher
Oct
19
awarded  Supporter
Aug
9
comment How to determine if coin comes up heads more often than tails?
The standard deviation of the sampling distribution of counts for sample size 24000 is $\sqrt{24000 x 0.5 x 0.5}$ That is, about 48% of all samples of size 24000 will yield a count of heads between 11950 and 12950. And, 95% of sample proportions will be between .494 and .506. That's due to the CLT.
Aug
8
revised How to determine if coin comes up heads more often than tails?
added 251 characters in body
Aug
8
comment How to determine if coin comes up heads more often than tails?
@Pete: Why would 12,012 heads after 24,000 flips be fishy? I just asked my computer to flip the coins and got 11,996. How else would the LLN work?
Aug
8
comment How to determine if coin comes up heads more often than tails?
@Pete I did not suggest that the set of people who flipped a coin many times to be limited to the three I mentioned. Those are the ones that I know are documented. However, I hope you would agree that FEW would be the appropriate adjective to describe the number of people who have tossed the same coin repeatedly that many times. I used to assign a homework where students were required to toss a coin 20-30 times. I know most of them could not be bothered with that.
Aug
8
revised How to determine if coin comes up heads more often than tails?
edited body
Aug
8
awarded  Editor
Aug
8
revised How to determine if coin comes up heads more often than tails?
added 7 characters in body
Aug
8
answered How to determine if coin comes up heads more often than tails?
Aug
8
awarded  Autobiographer