A company purchases a large shipment of fluorescent light bulbs. The bulbs are known to have a 4% defective rate. An inspector randomly selects a sample of 50 bulbs and tests them.


Use this information to fill in the blanks and answer the questions;
round probabilities accurately to four places.


a) How many bulbs in the sample are expected to be defective?



b) What is the probability that exactly 5 of the selected bulbs are defective?



c) What is the probability that at most 5 of the selected bulbs are defective?



d) What is the probability that more than 3 of the selected bulbs are defective?