Suppose that the high temperature on an August day in Death Valley varies between 98 and 118 degrees Fahrenheit and is uniformly distributed over this range of values.What is the probability that the high temperature will exceed 100 degrees on an August day?
A)10%
B)50%
C)90%
D)95%
E)100%

Question

Quizplus · Accepted Answer

The range of temperatures is from 98 to 118 degrees, a total range of 20 degrees. Temperatures above 100 degrees fall within a range of 18 degrees (from 100 to 118). Since the distribution is uniform, the probability is the favorable range (18 degrees) over the total range (20 degrees), which is 18/20 or 90%.

Suppose That the High Temperature on an August Day in Death