In a recent Gallup poll 53% of American adults believed that Congress is doing a poor or bad job. Suppose that you randomly choose 100 American adults and ask their opinion about Congress.

a. Determine the probability that more than half say that Congress is doing a poor or bad job.

b. Compute the probability more than 60% say that congress is doing a poor or bad job.

c. What is the expected number of American adults in your sample who would say that Congress is doing a poor or bad job?