Approximate the mean of the grouped data.
The age distribution of students in a statistics class.
Age frequency
20-29 23
30-39 24
40-49 23
50-59 19
60-69 8
What is the mean age of the students based on this given frequency distribution?
Round to the nearest hundredth.
Solution Preview
We can use the average of each age interval to estimate the mean, so we ...
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