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Given that the mean of these data is exactly 63.5 and the standard deviation is 12.333, what proportion (a number between 0 and 1)

Given that the mean of these data is exactly 63.5 and the standard deviation is 12.333, what proportion (a

Given that the mean of these data is exactly 63.5 and the standard deviation is 12.333, what proportion (a number between 0 and 1) of the data lie within one standard deviation of the mean? (Enter to 2 decimal places.)

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