Binomial Distribution

Quality Control: Syringes The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of eight syringes taken from the batch. Suppose the batch contains 1% defec­tive syringes.

a.) Make a histogram showing the probabilities of r = 0, 1, 2, 3, 4, 5, 6, 7, or 8 defective syringes in a random sample of eight syringes.

b.) Find. What is the expected number of defective syringes the inspector will find?

c.) What is the probability that the batch will be accepted?

d.) Find.