The median of observations 11, 12, 14, 18, x+2, x+4, 30, 32, 35, 41 arranged in ascending order is 24. Find x.

Topic: Statistics
Subtopic: Median

A20

B21

C22

D23

Explanation

Number of terms n = 10. Median is average of 5th and 6th terms: [(x+2) + (x+4)] / 2 = 24 => (2x + 6) / 2 = 24 => x + 3 = 24 => x = 21.

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