Question

A ski area has an information hotline that skiers can call to check on snow conditions. On a holiday weekend in February, the time between phone calls to the ski hotline follows an exponential distribution with a mean of 2.5 minutes. .

Find the 75th percentile (in minutes) for the time between phone calls.

A. 3.47 B. 2.77 C. 0.72 D. 0.58

Answer 1

As this follows an exponential distribution, we use the formula mentioned above and find the 75th percentile for time between phone calls.