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using empirical rule to find the probability

Scores on the GRE (graduate record examination) are normally distributed with a mean of 510 and a standard deviation of 148. Use the 68-95-99.7 rule to find the percentage of people taking the test who score between 66 and 954.

The percentage of people taking the test who score between 66 and 954 is ___%

Solution Preview

954 = 510 + 3 * 148 = mean + 3* SD
66 = 510 - 3 * 148 = mean - 3 * ...

Solution Summary

The solution explains how to apply the empirical rule to calculate the probability.

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