A company collected the ages from a random sample of its middle managers, with the resulting frequency distribution shown below. What is the midpoint of the third class interval?
A) 22.5
B) 27.5
C) 32.5
D) 37.5
E) 42.5

Question

A company collected the ages from a random sample of its middle managers, with the resulting frequency distribution shown below.  What is the midpoint of the third class interval?
A) 22.5 
B) 27.5 
C) 32.5 
D) 37.5 
E) 42.5

Quizplus · Accepted Answer

The midpoint is calculated as halfway between the boundaries of the class. The third class interval is 30 to 35, which yields a midpoint of 32.5.

A Company Collected the Ages from a Random Sample of Its