1.

The median of a set of 9 distinct observationsis 20.5. If each of the largest 4 observationsof the set is increase by 2, then the median ofthe new set :

Answer»

As there are 9 observations arranged in ascending order then median is 5th observation

So, 5th observation = 20.5

When largest four observations increased by 2 there will be no change in 5th observation. Therefore, median for new set remain same as of old set which is 20.5



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