Question

The approval rating, among registered voters, of The United States Congress is currently 8.5%. Determine the following:

If 22 randomly selected people are asked whether or not they approve of the job congress is doing, determine the probability that 3 people would say they approve.


b.If 12 randomly selected people are asked whether or not they approve of the job congress is doing, determine the probability that at most 4 people would say they approve.

Answer 1

I think a) is a trick question and its simply, 3/22 or 0.1364.

Answer 2

and b) 8/12? or .6667

Answer 3

To solve a, you need to know both what the probability of someone approving is and the probability of someone not approving.