Q17
ArithmeticAverages & Ages
If 35 is removed from data 30, 34, 35, 36, 37, 38, 39, 40 then the median increases by:
- a.2
- b.1·5
- c.1
- d.0·5
Answer: (D) 0·5
With eight values the median is the mean of the 4th and 5th, (36 + 37) ÷ 2 = 36·5. After removing 35 there are seven values (30, 34, 36, 37, 38, 39, 40) and the median is the 4th, 37. The increase is 0·5, not 1 or more.