A survey revealed that 60% of people are entertained by reading books, 50% are entertained by watching TV, and 20% are entertained by watchi

Question

A survey revealed that 60% of people are entertained by reading books, 50% are entertained by watching TV, and 20% are entertained by watching both books and TV. What is the probability that a person will be entertained by books or TV

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Khải Quang 4 years 2021-08-09T11:17:09+00:00 1 Answers 16 views 0

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  1. lethu
    0
    2021-08-09T11:18:42+00:00
    Reply

    Question seem incorrect because 60%,50% and 20% sum up to more than a 100% therefore we’ve made a little correction

    Answer:

    0.8

    Step-by-step explanation:

    Probability = number of favorable outcomes/number of outcomes

    Given that 30% are entertained by reading books

    50% are entertained by watching TV

    20% are entertained by reading books and watching TV

    The probability that a person will be entertained by books or TV =

    30/100+50/100= 3/10+5/10

    =8/10

    =0.8

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