# SOLUTION: You have 50 microwaves. Out of the 50 you have 4 defective ones. What is the probability that 2 out of the first 5 microwaves sold are defective? and how do I set up the equation?

Algebra ->  Algebra  -> Probability-and-statistics -> SOLUTION: You have 50 microwaves. Out of the 50 you have 4 defective ones. What is the probability that 2 out of the first 5 microwaves sold are defective? and how do I set up the equation?      Log On

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 Click here to see ALL problems on Probability-and-statistics Question 144311: You have 50 microwaves. Out of the 50 you have 4 defective ones. What is the probability that 2 out of the first 5 microwaves sold are defective? and how do I set up the equation?Answer by stanbon(57361)   (Show Source): You can put this solution on YOUR website!You have 50 microwaves. Out of the 50 you have 4 defective ones. What is the probability that 2 out of the first 5 microwaves sold are defective? and how do I set up the equation? ------------------ This is a binomial distribution problem. P(defective) = 4/50 P(not defective) = 46/50 ------------------------------- P(2 of 5 are defective) = 5C2*(4/50)^2*(46/50)^3 = 0.049836... Cheers, Stan H.