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help with statistics problem ?

assume the random variable X is normally distributed, with mean = 44 and standard deviation = 4. what is the 7th percentile?

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  • 2 months ago

    We require P(X < x) = 0.07

    i.e. P(Z < (x - 44)/4) = 0.07

    so, (x - 44)/4 = -1.475

    Hence, x = 44 - 4(1.475) => 38

    :)>

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