Problem 17E

Refer to Exercise 16. A competing process produces rings whose diameters (in centimeters) vary according to the probability density function

Specifications call for the diameter to be 10.0±0.1 cm. Which process is better, this one or the one in Exercise 16? Explain.

Answer:

Step 1 of 3:

The probability density function is

The probability that the diameter of a randomly chosen piston ring:

Given the diameter to be