A political committee consists of eight Democrats and nine Republicans. A subcommittee of nine people needs to be formed from this group.(For thisproblem, define a success as a Democrat being selected for thesubcommittee.)

a. Determine the probability that this subcommittee will consist of two Democrats and seven Republicans if they were randomly selected.

b. Calculate the mean and standard deviation of this distribution.

The standard deviation of this distribution is

nothing

. (Round to three decimal places asneeded.)