Suppose that, on average, 4 percent of all CD drives received by a computer company are defective. The company has adopted the following policy: Sample 50 CD drives in each shipment, and accept the shipment if none are defective. Using this information, determine the following:

What fraction of shipments will be accepted?

If the policy changes so that a shipment is accepted if only one CD drive in the sample is defective, what fraction of shipments will be accepted?

What is the probability that a sample size of 50 will contain at least 10 defective CD drives?