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Probability of independent event= 0.1. What is the probability of it not happening in 11 repititions?

If the probability of me dropping a ball when it is thrown to me (independent event) is 0.1, What is the probability of me dropping it at least once if the ball was thrown to me:

a) twice

b)11 times

c)100 times?

1 Answer

Relevance
  • ?
    Lv 4
    1 decade ago
    Favorite Answer

    1

    [1-0.1]^11 = 0.9^11

    2

    a)

    1-[1-.1]^2 = 1 - 0.9^2

    b)

    1-[1-.1]^11 = 1 - 0.9^11

    c)

    1-[1-.1]^100 = 1 - 0.9^100

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