Question

Based on the above data Find the median of following frequency distribution

Answer 1

Answer:

Sum of the Frequencies f

1

+5+9+12+f

2

+3+2=31+f

1

+f

2

But N=40⟹31+f

1

+f

2

=40⟹f

1

+f

2

=9⟹f

2

=9−f

1

Given median is 32.5 which lies in class is 30−40

So median class is 30−40

Median is l+

f

h

[

2

N

−C]

Here l=30,

2

N

=20,h=10,f=12,C=14+f

1

⟹30+

12

10

[20−f

1

−14]=32.5

⟹6−f

1

=3⟹f

1

=3

f

2

=9−3=6

please mark as brainlest answer