Answer (Choose 1 answer)
A. 3.5 millimeters
B. None of the other choices is correct
C. 3.0 millimeters
D. 4.5 millimeters
E. 4.0 millimeters
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?
