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Averages from Frequency Tables

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Question 17

A group of 50 employees recorded the distance they walked to work. The results are summarized in the table.

Distance (d d\,d km)Frequency
1 to 510
6 to 1016
11 to 1512
16 to 207
21 to 255

Calculate an estimate for the mean distance walked.

[3]

Averages from Frequency Tables Questions

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