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    Mean of the Group Data

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    Using the employment information in the table on Alpha Corporation, find the mean for the grouped data.

    Years of service Frequency
    1-5 5
    6-10 20
    11-15 25
    16-20 10
    21-25 5
    26-30 3

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    Solution Summary

    The mean of the group data is found. THe employment information in the table on Alpha Corporation is used.