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    normal distribution

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    Assume that x has a normal distribution, with the specified mean and standard deviation. Find the indicated probabilities.

    6)P(40 less than or equal to x less than or equal to 47); u = 50; o = 15

    10) P( x greater than or equal to 2); u = 3; o = 0.25

    Find the z value described and sketch the area described.

    14) find z such that 97.5% of the standard normal curve lies to the left of z.

    18) find z such that 95% of the standard normal curve lies to the right of z.

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    Solution Summary

    The solution shows how to calculate the probability of the normal distribution using z-score.