Suppose that the time that your employees spend reading and answering e-mail each day varies between 1.5 and 3.5 hours and is uniformly distributed over this range of values.What is the probability that an employee spends more than two hours reading and answering e-mail?
A)20%
B)25%
C)50%
D)75%
E)90%

Question

Quizplus · Accepted Answer

The uniform distribution means that every value in the range from 1.5 to 3.5 hours is equally likely. The total range is 3.5 - 1.5 = 2 hours. The range of values greater than 2 hours is from 2 to 3.5, which is 1.5 hours. Therefore, the probability is 1.5 / 2 = 0.75 or 75%.

Suppose That the Time That Your Employees Spend Reading and Answering