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Question
Numbers 50, 42, 35, 2x + 10, 2x − 8, 12, 11, 8 are written in descending order and their
median is 25, find x.
Solution
Given number of observation, n = 8
Median =`(n^(th)/2 observation +(n/2 + 1)^(th) observation)/2`
= `(2x + 10 + 2x -8)/2`
= 2x +1
Given median = 25
∴ 2x +1 = 25
⇒ 2x = 24
⇒ x = 12
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