Question: (The Poisson distribution can be used to approximate the binomial distribution when n is large and p is small-say, p less than 0.1. In utilizing the Poisson approximation, let A= np .) In the production of ball bearings, bubbles or depressions occur, rendering the ball bearing unftt for sale. It has been noted that, on the average, one in every 800 of the ball bearings has one or more of these defects. What is the probability that a random sample of 4000 will yield fewer than three ball bearings with bubbles or depressions?