statistics

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use the normal distribution to approximate the desired probability.

find the probability that in 200 tosses we will obtain at least 40 fives.

  • statistics -

    Probability = N!/(r![N-r]!) * p^r * q^(n-r)

    Probability = 200!/(40![200-40]!) * (1/6)^40 * (5/6)^(200-40)

    Probability = 0.032865

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