Question

In: Statistics and Probability

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

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

Distance Frequency

0-4 20

4-8 25

4-12 30

12-16 20

16-24 5

Calculate the sample variance and standard deviation for this data (since it is a case of grouped data- use group or class midpoints in the formula in place of X values, and first calculate the sample mean)

Solutions

Expert Solution

The grouped data information provided, with the corresponding frequencies is shown in the table below:

Please note that the third class "4-12" seems to be wrong. It should have been 8-12. Please cross-check.

Let me know in the comments if anything is not clear. I will reply ASAP! Please do upvote if satisfied!

orchestra answered 1 year ago
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