Question 1 • Concepts in Probability and Statistics A
Mean absolute deviation describes how spread out the data values are from their mean. Sets 1 and 2 each contain a value far from the rest: 88 in set 1 and 63 in set 2. Those outliers increase the spread, while set 3’s values are comparatively close together, so the statement that sets 1 and 2 contain outliers explains why set 3 has the least mean absolute deviation.
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