13.For quality control purposes, a company that manufactures sim chips in batches of 1000 for cell/smart phones routinely takes samples from its production process.Since it is important that these chips are nearly fault free, one inspection check involves using microscopic equipment to count the number of imperfections on each chip within a batch. Suppose the average number of imperfections per 1000 sim chips is 3.

What is the probability that a sample of 1000 sim chips has 5 imperfections?