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Averages from Frequency Tables

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Question 22

The frequency table shows information about the masses of 20 parcels delivered to an office.

Mass (m m\,m kg)Frequency
0 to 44
5 to 97
10 to 145
15 to 193
20 to 241

Calculate an estimate for the mean mass of the parcels.

[3]

Averages from Frequency Tables Questions

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