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Which of the following is not a rule used in the statistical analysis done using a normal distribution?

Which of the following is not a rule used in the statistical analysis done using a normal distribution?
A . Two-thirds of the outcomes will lie above within one standard deviation of the mean
B . 95% of the outcomes will lie within two standard deviations from the mean
C . Two-thirds of the outcomes will lie below within two standard deviations of the mean.
D . Two-thirds of the outcomes will lie either above or below within one standard deviation of the mean

Answer: C

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