An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired.Historically,the data show that the likelihood is 0.75 that troubles in a residential service can be repaired on the same day.For the first five troubles reported on a given day,find the mean number of troubles repaired on the same day.
A)3.75
B)0.94
C)1.94
D)2.50

Question

Quizplus · Accepted Answer

The mean number of troubles repaired on the same day can be found using the formula for the mean of a binomial distribution: mean = n * p, where n is the number of trials (5) and p is the probability of success (0.75). Thus, mean = 5 * 0.75 = 3.75.

An Important Part of the Customer Service Responsibilities of a Cable