Question: 4. Reconsider the data in Problem 5 of Section 2.3, reproduced here: 148 167 171 177 175 165 134 177 168 142 126 166 130

4. Reconsider the data in Problem 5 of Section 2.3, reproduced here:

148 167 171 177 175 165 134 177 168 142 126 166 130 122 157 138 163 129 143 145 141 162 147 141 164 137 149 146 132 157

(a) Determine the mean and median for these data.

(b) Determine the range, variance, and the standard deviation for these sample data.

(c) Determine what percentage of the data fall within two standard deviations of the mean.

66 2 Describing Data Graphically and Numerically

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