What true percent of data lies in one standard deviations


What true percent of the data lies within one standard deviations of the mean? Within two standard deviations of the mean? How do these results agree with the Empirical Rule?

Mean 2270.54
Median 2207
Mode 2207
Standard Deviation 653.1822014
Sample Variance 426646.9882
Range 3138
First Quartile 1147
Second Quartile 1147
Third Quartile 2727.5
80th Percentile 2832.4

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Basic Statistics: What true percent of data lies in one standard deviations
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