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    The Mean of X Based on Standard Deviation

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    If X is a normal random variable with standard deviation 4.00, and if the probability that X is more than 5.52 is .305, than what is the mean of X?

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    Solution Preview

    Denote by mu the mean of X. Given



    P((X-mu)/4> ...

    Solution Summary

    This solution computes the mean of variable X.