In the 2017 national Youth Risk Behavior Survey, 16.5% of high school students had ridden with a driver who had been drinking alcohol within the previous month.This data came from an SRS of 14,500 students.

Find the mean of the sampling distribution.

Find the standard deviation of the sampling distribution.

Find the probability of selecting an SRS of 14,500 students in which less than 15% had ridden with a driver who had been drinking alcohol within the previous month.