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Frequency Table: Mean for the Grouped Data

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The following frequency table summarizes the ages of 100 shoppers at the local grocery store.

Age of the shopper Frequency
15-25 15
25-35 30
35-45 25
45-55 15
55-65 10
65-75 5

Calculate the sample mean for this data (mean for the grouped data). Please show your work in Excel.

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This solution is comprised of a step-by-step explanation of finding the mean of grouped data in a frequency table.

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