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Finding the aprroximated mean of grouped data

Approximate the mean of the grouped data:
The age distribution of students, i, a statistics class.
Age: 20-29 30-39 40-49 50-59 60-69
Frequency: 24 21 21 22 6
What is the mean age of the students based on this given frequency distribution?
(round to the nearest hundredth)

Solution Preview

We take the average of two endpoints in each group ,and then multiply it by the ...

Solution Summary

The solution details how to approximate a mean of grouped data.