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    Determine Mean, Median, and Mode

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    Chapter 6: 6.21
    "You think that your university bookstore is overcharging students. In researching this, you find the following data on the amount of money students spend on textbooks at other schools."

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    (a) Estimate the mean amount spent on textbooks in one semester:
    Mid-point Frequency Amount Spent
    225 100 22500
    275 250 68750
    325 75 24375
    375 25 9375

    Mean: ...