Florida State University has 14

statistics classes scheduled for its Summer 2013 term. One class has space

available for

30 students, eight classes have space for

60 students, one class has space for 70 students, and four classes have space

for

100 students.

a. What is the average class size assuming

each class is filled to capacity?

b. Space is available for 980 students.

Suppose that each class is filled to capacity and select a statistics student

at random. Let the random variable X equal the size of the student’s class.

Define the PDF for X.