A survey revealed that 45% of people are entertained by reading books, 46% are entertained by watching TV, and 9% are entertained by both books and TV.What is the probability that a person will be entertained by either books or TV?
A)1.0
B)0.9
C)0.82
D)0.8
E)0.91

Question

Quizplus · Accepted Answer

The probability of being entertained by either books or TV is calculated using the formula for the union of two events: P(A or B) = P(A) + P(B) - P(A and B). Here, P(A) = 0.45, P(B) = 0.46, and P(A and B) = 0.09. So, P(A or B) = 0.45 + 0.46 - 0.09 = 0.82.

A Survey Revealed That 45% of People Are Entertained by Reading