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    Standard Normal Distribution

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    Question 1

    Use Appendix Table for Normal Distribution to find area under Standard Normal Distribution curve to the left of z = 0.85
    Answer

    0.8023

    0.6245

    0.3524

    0.0582

    Question 2

    Use Appendix Table for Normal Distribution to find area under Standard Normal Distribution curve to the right of z = -1.96
    Answer

    0.1282

    0.5466

    0.7365

    0.9750

    Question 3

    Use Appendix Table for Normal Distribution to find area under Standard Normal Distribution curve between z= -1 and z = 1
    Answer

    0.8246

    0.6826

    0.4856

    0.2446

    Question 4

    For Normal distribution with mean ? = 400 and standard deviation ? = 100 find probability that x is less than 535: P(x < 535)
    Answer

    0.1548

    0.3466

    0.9115

    0.7241

    Question 5

    For Normal distribution with mean ? = 400 and standard deviation ? = 100 find probability that x is greater than 619: P(x > 619)
    Answer

    0.0143

    0.3458

    0.5942

    0.8124

    Question 6

    For Normal distribution with mean ? = 400 and standard deviation ? = 100 find probability that x is between 340 and 714: P( 340 < x < 714)
    Answer

    0.3427

    0.5462

    0.7249

    0.9140

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    Solution Preview

    1. Left of z = 0.85:

    0.5000 + 0.3023 = 0.8023

    2. Right of z = -1.96:

    0.5000 +0.4750 = 0.9750

    3. Area between z= -1 and z = 1

    0.3413 + 0.3413 = 0.6826

    4. Mean = 400 and standard deviation = 100 find ...

    Solution Summary

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