A) Is increased by 2
B) Is decreased by 2
C) Is two times the original median
D) Remains the same as that of the original set
Correct Answer: D
Solution :
Since n = 9, then median term \[={{\left( \frac{9+1}{2} \right)}^{th}}\] \[={{5}^{th}}\text{ term}\]. Now, last four observations are increased by 2. ∵ The median is 5th observation, which is remaining unchanged. \ There will be no change in median.
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