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Could I please get guidance on how to solve this? I'm not sure which rows I'm supposed to calculate. Thank you for your help the

Could I please get guidance on how to solve this? I'm not sure which rows I'm supposed to calculate. Thank you for your help
the following grouped data, find the sample standard deviation s. (Use the mean value 59 to calculate the sample standard deviation rounded to the nearest w Midpoint Frequency Product Interval X 41.5-48.5 585 48.5-55.5 832 55.5-62.5 1,239 62.5-69.5 1,584 69.5-76.5 292 76.5-83.5 80 m 240 X

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