What is the upper class boundary of the class 23-35 ?
A) 35
B) 7.5
C) 35.5
D) 7

Question

Quizplus · Accepted Answer

The upper class boundary of the class 23-35 can be calculated by subtracting the midpoint of this class (i.e. 29) from the next class midpoint (i.e. 41) and adding the result to the upper limit of the initial class (i.e. 35). 
Upper class boundary = 35 + ((41 - 29) / 2) = 35 + 6 = 41
Therefore, the correct answer is option C, 35.5 is the upper class boundary.

What Is the Upper Class Boundary of the Class 23-35