College bound: A national college researcher reported that 68% of students who graduated from high school in 2012 enrolled in college. Thirty high school graduates are sampled. (a) What is the mean number who enroll in oollege in a sample of 30 high school graduates? Round the answer to two decimal places. The mean number who enroll in college in a sample of 30 high school graduaba is D. (b) What is the standard deviation of the number who enroll in college in a sample of 30 high school graduates? Round the answer to four decimal places. The standard deviation of the number who enroll in college in a sample of 30 high school graduaba is D