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    Frequency polygons for grouped data

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    Frequency polygons for grouped data

    Below are the times (in days) it takes for a sample of 20 customers from Andrew's computer store to pay their invoices.
    19,15,43,39,35,31,27,22,18,14,42,38,34,30,13,13,41,41,37,37.

    Draw the frequency polygon for these data using an initial class boundary of 12.5 and a class width of 7. Note that you can add or remove classes from the figure. Label each class with its midpoint.

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    https://brainmass.com/statistics/frequency-distribution/frequency-polygons-grouped-data-41394

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    The expert examines frequency polygons for grouped data.

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