A supervisor is gathering samples of the newly-made products of the company. If each sample has 4% chance of missing a part, find the probability that in the next 20 samples, exactly 3 samples have...

A supervisor is gathering samples of the newly-made products of the company. If each sample has 4% chance of missing a part, find the probability that in the next 20 samples, exactly 3 samples have missing parts. Assume that the samples are independent with regard to the presence of the missing parts.