Question

Ans correctly please and ans fast

Answer 1

First find the cumulative freqs.

Obs. Cf.
10 1
12 5
14 10
16 19
18 20
20 23

Hence, there are odd number of observations (23).

Therefore,
median = (n+1/2)th observation
= (24/2)th obs.
= 12 th observation
And as we can see from the cumulative freq. table that the 12 th observation is 14 (in fact all observations from 10-19 are 14); we can conclude that the median is 14.

(Tip: Just remember that median means the middle-most term of a list of observations...)

Hope it helps.....