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    Z-score and Standard Normal Distributions

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    If the random variable z is the standard normal score and a > 0, is it true that P(z < -a) = P(z > a)? Why or why not?

    Find the z-score for the standard normal distribution where:

    Area = 0.32 in the left tail

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    Solution Preview

    It is true that P(z<-a)=P(z>a). Since normal standard distribution is ...

    Solution Summary

    The expert examines the z-scores and standard normal distributions.