As in the previous problem,64

students are randomly selected from a statisticsclass. IfX

is the number of students who received a B or above on the final exam,then the distribution ofX

can be approximated with a normal distribution,N(32,4.0)

, where the mean (

) is32

and standard deviation (

) is4.0

.

Using this approximation, find the probability of36

,37

, or38

students receivinga B or above on the final exam. You may use the portion of the Standard Normal Table below.