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The probability of a man hitting a targe...

The probability of a man hitting a target in one fire is `1/4`. How many times at least must he fire at the target in order that his chance of hitting the target at least once will exceed `2/3`?

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Knowledge Check

  • The probability that a man can hit a target is 3/4 . He tries 5 times the probability that he will hit the target at most one time is

    A
    `(1/4)^(3)`
    B
    `(3/4)^(5)`
    C
    `(1/4)^(2)(3/4)^(3)`
    D
    None of these

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