427 reputation
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location Provo, UT
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visits member for 1 year, 7 months
seen May 4 at 16:08

Jan
16
awarded  Yearling
May
9
awarded  Caucus
Mar
24
accepted What's the expected number of coin tosses in order to get a sequence HHTTHH?
Mar
24
comment What's the expected number of coin tosses in order to get a sequence HHTTHH?
You will do a long list of tosses, as long as you get HHTTHH, you will stop, count on average how many times you need to toss in order to get HHTTHH.
Mar
24
asked What's the expected number of coin tosses in order to get a sequence HHTTHH?
Mar
24
comment $\lim_{x\to\infty} x^{1+1/x}-x-\log x$ and $\lim_{x\to\infty}\frac{x^{1+1/x}-x}{\log x}$
I think it is putnam contest problem
Mar
24
comment Integration of normal cdf * normal pdf
It seems very close your question: quant.stackexchange.com/questions/7505/…
Mar
23
comment This population will be extinct or not
After a very long time
Mar
23
revised This population will be extinct or not
added 23 characters in body
Mar
23
asked This population will be extinct or not
Mar
23
comment How many boxes will be empty?
Great solution, I never thought about Poisson distribution
Mar
23
accepted How many boxes will be empty?
Mar
23
awarded  Critic
Mar
23
awarded  Editor
Mar
23
comment How many boxes will be empty?
I mean on average
Mar
23
revised How many boxes will be empty?
added 12 characters in body
Mar
23
asked How many boxes will be empty?
Mar
23
accepted What's the probability that A wins finally
Mar
23
awarded  Scholar
Mar
23
accepted What's the probability that $A$ always leads $B$ in the process of counting votes?