The Ski Patrol at Criner Mountain Ski Resort has determined the following probability distribution for the number of skiers that are injured each weekend: Based on this information,the expected number of injuries per weekend is 2.25.

Question

The Ski Patrol at Criner Mountain Ski Resort has determined the following probability distribution for the number of skiers that are injured each weekend:  Based on this information,the expected number of injuries per weekend is 2.25.

Quizplus · Accepted Answer

To find the expected number of injuries, we multiply the number of injuries possible (0, 1, 2, 3) by their respective probabilities and add them together.

E(X) = (0)(0.10) + (1)(0.35) + (2)(0.45) + (3)(0.10) = 2.25

Therefore, the expected number of injuries per weekend is indeed 2.25.

The Ski Patrol at Criner Mountain Ski Resort Has Determined