Question 429930
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Hi
Note: The probability of x successes in n trials is: 
P = nCx* {{{p^x*q^(n-x)}}} where p and q are the probabilities of success and failure respectively. 
In this case p = .94  and  q = .06
nCx = {{{n!/(x!(n-x)!)}}}
P(5 failures in 15 treatments) = 15C5(.06)^5(.94)^10