
#1
May810, 05:25 AM

P: 10

I got a question on estimation theory. Can anyone explain it to me or give me a link with some tut and solutions so I can get a better understanding.
I got a maths question which i have asked for help but no one has replied yet. Since it was a statistical question I should have posted it here. The question can be found here: http://www.physicsforums.com/showthread.php?t=401521 I'm stuck on part (b) The two issue I think I have with the question are that I don't understand the term "binomial proportion" and estimation theory in general. Can and one explain this to me? 



#2
May810, 07:27 AM

P: 10

Is the "binomial proportion" just the probability the event is successful?
i.e. for 2 coin toss with 50/ 50 chance of either H or T, the binomial proportion for 2 heads is 1/4? Is my understanding correct... or is it something else? 



#3
May1410, 04:47 PM

P: 300

A binomial probability is the probability that a random sample of size n will have an outcome of x. The equation is
P(x) = n!/(k!(nk)!) * p^{k} * q^{nk} where k is number of outcomes you want, p is probability of an outcome, q is probability of an outcome not happening. For example, suppose that there are 999 voters in the US. 599 voters were in favor for a certain candidate. If I randomly select 110 voters out of the population, the probability that 56 voters will be in favor of the candidate is 110!/(56!(11056)!) * .5995996^{56} * .4004004^{54} = 2.2345492668874894732687678194543e+103 * .5995996^{56} *q^{54} = 3.632743322467059575061399533725e13 * q^{54} gives me a probability of 1.2443365480583675485269518116737 e34 


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