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    Finding z value and probability under standard normal curve

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    1A. For a normal distribution that has a mean of 100, and a standard deviation of 8, determine the Z-score for each of the following X values

    X = 108 Z=

    X = 112 Z =

    X = 98 Z =

    X = 70 Z =

    X = 124 Z =

    1B. Use the information in 1 A. to determine the area or probability of the following p(x > 108)

    p(x < 98)

    p(92 < x < 108)

    p(84 < x < 116)

    p(x < 84)

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    Solution Preview

    Now z=(x-mean)/sd
    X = 108 Z=(108-100)/8=1
    X = 112 Z =(112-100)/8=1.5
    X = 98 Z ...

    Solution Summary

    The solution gives detailed steps on finding z value and probability under a standard normal curve.

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