Descriptive Statisticshard
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The median minimizes i=1nxic\sum_{i=1}^{n}|x_i - c| for any constant cc. For the dataset {3, 7, 9, 12, 15}, which statement(s) is/are true?

(1) Sum of absolute deviations from median equals 14 (2) Median = 9 (3) Sum from mean (8.4) is less than sum from median (4) When c=9c = 9: 39+79+99+129+159=17|3-9| + |7-9| + |9-9| + |12-9| + |15-9| = 17