With any set of scores that is normally distributed, what percentage of the total area falls (hint: No need to use any formula; please think about 68%,95%, 99.7% rule)       a. between the mean and a score that lies one standard deviation below the mean?       b. between a score that lies one standard deviation below the mean and one standard deviation above the mean?       c. between a score that lies two standard deviations below the mean and two standard deviations above the mean?

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