Question

please explain

The median of a set of 9 distinct observations is 20.5. If each of the largest 4 observation of the set is increased by 2, then the median of the new set
(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

Answer 1

Answer:

If each of the largest 4 observations. Since n = 9, the median term = (9+1)/2 = 5th term.