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Median of a set of numbers!

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Median of a set of numbers!

by kanagasu » Sat Aug 21, 2010 11:47 pm
In the set of numbers {15,200,250,n}

Which of the following could be the median of the 4 integers listed above?

1. 175
2. 215
3. 235

A. 1 only
B. 2 only
C. 1 and 2 only
D. 2 and 3 only
E. All the three.

OA C
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by srajan » Sun Aug 22, 2010 1:24 am
Find the median assuming the n is the smallest no. in the group.
median = (15+200)/2
The median cannot be smaller than the above value.
Now find the median assuming n is the largest in the group.
median = (200+250)/2
Here median cannot be larger than the above value.

Now we have got the range of the median.
107.5<=median<=225

Select the values which fall between these nos and you have got your answer.
In this case C.
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