SOLUTION: Find the normal approximation for the binomial probability that x = 5, where n = 14 and p = 0.5.

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Question 609808: Find the normal approximation for the binomial probability that x = 5, where n = 14 and p = 0.5.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

Note: The probability of x successes in n trials is: 

P = nCx* p%5Ex%2Aq%5E%28n-x%29 where p and q are the probabilities of success and failure respectively. In this case p & q are = 1/2 or .5

nCx = n%21%2F%28x%21%28n-x%29%21%29  14C5 = 2002

P(5) =2002* %28.5%29%5E5%2A%28.5%29%5E9 = .1222

Can highly recommend stattrek.com for statistical calculations