Approximate the mean and standard deviation of the five-year rate of return data in Table 13 using

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Approximate the mean and standard deviation of the five-year rate of return data in Table 13 using a TI-84 Plus C graphing calculator.

Approach The steps for approximating the mean and standard deviation of grouped data using the TI-83/84 Plus graphing calculator and StatCrunch are given in the Technology Step-by-Step below.

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