In the data set {2, 2, 3, 5, 9}, which statistic is the mode?

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Multiple Choice

In the data set {2, 2, 3, 5, 9}, which statistic is the mode?

Explanation:
Mode is the statistic that represents the value that appears most often in a data set. In this set, 2 occurs twice, while all other numbers occur once, so 2 is the most frequent value and is the mode. For contrast, the median would be the middle number when the data are arranged in order (2, 2, 3, 5, 9 → median 3). The mean is the average (2+2+3+5+9 = 21, 21/5 = 4.2). The range is the difference between the largest and smallest values (9 − 2 = 7).

Mode is the statistic that represents the value that appears most often in a data set. In this set, 2 occurs twice, while all other numbers occur once, so 2 is the most frequent value and is the mode. For contrast, the median would be the middle number when the data are arranged in order (2, 2, 3, 5, 9 → median 3). The mean is the average (2+2+3+5+9 = 21, 21/5 = 4.2). The range is the difference between the largest and smallest values (9 − 2 = 7).

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