Goup or class midpoints in the formula

Reference no: EM1389090

The following frequency table summarizes the distances in miles of 100 patients from a regional hospital.

Distance      Freq.
0-2                45
2-4                25
4-6                20
6-8                10

Calculate the standard deviation for this data = since it is a case of grouped data with classes. use group or class midpoints in the formula in place of x values.

Reference no: EM1389090

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