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5 March, 09:29

A website offers a coupon such that each customer has a 15/%15%15, percent chance of getting the coupon each day they visit the site. Aya visits the website for 666 consecutive days.

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  1. 5 March, 10:19
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    0.62

    Complete question:

    What is the probability that at Aya will be offered a coupon on at least one of the days she visits the website?

    Step-by-step explanation:

    assuming,

    A: Aya gets a coupon one day. P (A) = 0.15

    B: Aya doesn't get a coupon one day. P (B) = 1 - 0.15 = 0.85

    Aya doesn't get a coupon in any of 6 days = P (B) ^6 = 0.85^6 = 0.38

    The probability of Aya getting at least 1 coupon after 6 days is the complement of don't getting any coupon after 6 days, that is:

    1 - P (B) ^6 = 1 - 0.38 = 0.62
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