High temperatures in a certain city for the month of August follow a uniform distribution over the interval 61°F to 86°F. What is the probability that the high temperature on a day in August exceeds 66°F?
A) 0.449
B) 0.04
C) 0.8
D) 0.2

Question

Quizplus · Accepted Answer

The uniform distribution is defined over the interval 61°F to 86°F. The probability that the temperature exceeds 66°F is the length of the interval from 66°F to 86°F divided by the total length of the interval from 61°F to 86°F. This is (86 - 66) / (86 - 61) = 20 / 25 = 0.8.

High Temperatures in a Certain City for the Month of August