The diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 2.5 to 4.5 millimeters. What is the mean diameter of ball bearings produced in this manufacturing process?
A) 4.5 millimeters
B) 3.0 millimeters
C) 4.0 millimeters
D) 3.5 millimeters

Question

Quizplus · Accepted Answer

The mean of a uniform distribution is calculated as the average of the interval endpoints: (2.5 + 4.5) / 2 = 3.5 millimeters.

The Diameters of Ball Bearings Produced in a Manufacturing Process