Q20 of 33 Page 156

The median of a set of 9 distinct observations is 20. If each of the largest 4 observations of the set is increased by 2, find the median of the resulting set.

No of terms, n = 9

As, n is odd


Median is term.


⇒ Median is 5th term


If each of the largest 4 observations of set is increased by 2, it does not affect 5th term or the order of terms.


Therefore, median remains same i.e. 20.


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