The hair length of students in a class are normal distributed with a mean of 7 inches and standard deviation of 1.5 inches.
5) What is the probability that a random student will have hair longer than 8.5 inches?
6) What is the probability that their hair will be longer than 2.5 inches?
7) If there are 35 students in class, about how many have hair length longer than 4 inches? (Round
down to the nearest person)
8) Using the same amount of students, about how many have hair lengths between 5.5 and 11.5
inches? (Round down to the nearest person)