Question

Find median for the following data:

X 5 10 15 20 25

f 25 20 15 10 5

Answer 1

To find the median we first calculate a table which is given below

Now $N=\sum f_i=75$

Therefore median $M=(\frac{N+1}{2})$th term

$=(\frac{75+1}{2})$th term

$=38$ th term

$=10$