Suppose the time it takes for customer representatives to diagnose and fix computer problems is uniformly distributed from 10 to 120 minutes.What is the probability that a problem is diagnosed and fixed within 30 minutes?
A)0.27
B)0.73
C)0.82
D)0.50
E)0.18

Question

Quizplus · Accepted Answer

The time it takes for customer representatives to diagnose and fix computer problems is uniformly distributed between 10 and 120 minutes. The total range of time is 120 - 10 = 110 minutes. To find the probability that a problem is diagnosed and fixed within 30 minutes, we calculate the range from 10 to 30 minutes, which is 30 - 10 = 20 minutes. The probability is then the range of interest (20 minutes) divided by the total range (110 minutes), which is 20/110 = 0.1818, rounded to 0.18.

Suppose the Time It Takes for Customer Representatives to Diagnose