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7 February, 13:21

The probability a randomly selected residence subscribes to at least one newspaper is 0.38. The probability a randomly selected residence has at least one e-reader is 0.15. Assume whether a randomly selected household subscribes to at least one newspaper is independent of whether the residence has at least one e-reader. What is the probability a randomly selected residence subscribes to at least one newspaper given the household has at least one e-reader?

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  1. 7 February, 13:23
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    0.38

    Step-by-step explanation:

    Given that the probability a randomly selected residence subscribes to at least one newspaper is 0.38

    The probability a randomly selected residence has at least one e-reader is 0.15

    A - subscribes to atleast one newspaper

    B = atleast one e reader

    A and B are independent

    P (A) = 0.38 and P (B) = 0.15

    the probability a randomly selected residence subscribes to at least one newspaper given the household has at least one e-reader

    = P (A/B) = P (A) (since A and B are independent)

    = 0.38
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