Consider the county of the previous exercise and suppose that a simple random sample of 4 males and a simple random sample of 4 females are collected, independently of one another. (a) what is the sample space and the probability model for this random experiment? (b) what is the probability that exactly 4 of the 8 selected voters are democrats? hint: observe that {4 democrats} = [ 4 i=0 { i male democrats and 4 − i female democrats} .