A certain university maintains a colony of male mice for research purposes. The ages of the mice are normally distributed with a mean of 60 days and a standard deviation of 5.2. Assume you randomly sample one mouse from the colony. The probability his age will be between 55 and 70 days is _________.
A) 0.8041
B) 0.4980
C) 0.8066
D) 0.1959

Question

Quizplus · Accepted Answer

The probability his age will be between 55 and 70 days is 0.8041. This is because the area under the normal curve between z-scores of -0.96 and 1.92 is 0.8041.

A Certain University Maintains a Colony of Male Mice for Research