Do you tailgate the car in front of you? About45%of all drivers will tailgate before passing, thinking they can make the car in front of them go faster. Suppose that you are driving a considerable distance on a two-lane highway and are passed by8vehicles.

(a) Let r be the number of vehicles that tailgate before passing. Make a histogram showing the probability distribution ofr for r - 0 through 1' - B. 0.35 0.25 0.2 0.2 F\"\"015 0.1 0.05 O ' O ' (b) Compute the expected number of vehicles out of 8 that will tailgate. (Round your answer to two decimal places.) vehicles (1:) Compute the standard deviation of this distribution. (Round your answer to two decimal places.) vehicles