The Diameters of Ball Bearings Produced in a Manufacturing Process

Multiple Choice

The diameters of ball bearings produced in a manufacturing process can be described using a uniform distribution over the interval 6.5 to 8.5 millimeters. Any ball bearing with a diameter of
Over 8.25 millimeters or under 6.75 millimeters is considered defective. What is the probability that
A randomly selected ball bearing is defective?

A) .75
B) .25
C) .50
D) 0