For the set {1, 3, 4, 7, 8, 9}, what is the median?

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Multiple Choice

For the set {1, 3, 4, 7, 8, 9}, what is the median?

Explanation:
Median is the middle value of a data set when the numbers are ordered; when there are an even number of values, you take the average of the two central numbers. Here, the six numbers in order are 1, 3, 4, 7, 8, 9. The two middle numbers are 4 and 7, and their average is (4 + 7) / 2 = 11 / 2 = 5.5. So the median is 5.5.

Median is the middle value of a data set when the numbers are ordered; when there are an even number of values, you take the average of the two central numbers. Here, the six numbers in order are 1, 3, 4, 7, 8, 9. The two middle numbers are 4 and 7, and their average is (4 + 7) / 2 = 11 / 2 = 5.5. So the median is 5.5.

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