Question

For the following set of data, find the number of data within 1 population standard deviation of the mean. Data Frequency 15 1 16 7 17 11 21 13 22 12 25 9 28 6 30 1

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Answer 1

The mean age of the frequency distribution for the ages of the residents of a town is 43 years.
Explanation:
We are given with the following frequency distribution below;