SOLUTION: A doctor is using a method of treatment that is thought to be 94% successful. What is the probability that there are five failures in 15 treatments (round to the nearest thousandth

Hi

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

P = nCx*  where p and q are the probabilities of success and failure respectively. 

In this case p = .94  and  q = .06

nCx = 

P(5 failures in 15 treatments) = 15C5(.06)^5(.94)^10