Find the median of the data set: 12, 7, 15, 9, 21, 18, 11.

Topic: Statistics
Subtopic: Median

A11

B12

C15

D18

Explanation

Arrange data in ascending order: 7, 9, 11, 12, 15, 18, 21. Total elements n = 7. Median is the 4th element, which is 12.

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