The number of defective components produced by a certain process in one day has a Poisson

distribution with mean 20. Each defective component has probability 0.6 of being repairable.

a. Find the probability that exactly 15 defective components are produced.

distribution with mean 20. Each defective component has probability 0.6 of being repairable.

a. Find the probability that exactly 15 defective components are produced.