Question 8 • Concepts in Probability and Statistics A
The values add to 102, and 102 ÷ 6 = 17, so the mean is 17. In order, the data are 8, 11, 12, 13, 16, 42; the median is the average of the two middle values, (12 + 13) ÷ 2 = 12.5. The outlier 42 pulls the mean upward, while the median depends on the middle values, so the mean is more affected by the outlier.
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