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    HLPaper 1

    A statistical analysis determined that the average professional rower could maintain an average power output of 6.0 watts per kilogram (W kg–1), with a standard deviation of 0.5 W kg–1. What proportion of the total data spread would fall within the range of 5.0–7.0 W kg–1?

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    Related topics

    6.1.3. State that the statistic standard deviation is used to summarize the spread of values around the mean, and that within a normal distribution approximately 68% and 95% of the values fall within plus or minus one or two standard deviations respectively.

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