Use the frequency distribution whose class width is 4 obtained in Problem 29 in Section 2.2 to approximate the mean and standard deviation exit velocity. Compare these results to the actual mean and standard deviation exit velocity.

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111.0 102.1 105.8 104.3 101.8 101.4 108.7 104.6 105.9 101.0 100.6 104.0 105.5 99.3 104.2 108.3 99.9 102.9 103.4 106.5 103.2 104.1 101.2 102.8 106.6 100.8 93.8 96.4 107.3 103.0 100.5 105.9 107.1 97.6 90.9 105.1 107.3 103.4 99.5 109.3 104.6 104.0 103.6 102.7 112.2 99.7 100.4 94.8 100.7 104.7