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Median

If in a data,...

Question

If in a data, $10$ numbers arranged in increasing order. If the $7$ th entry is increased by $4,$ then the median increases by

A

zero

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B

4

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C

6

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D

5

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Solution

The correct option is D zero
The median would be average of the $5^{t h}$ and $6^{t h}$ observations. Since they are unaffected by increase in $7^{t h}$ entry, the median will be unchanged.

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