Question

find the mode of the following frequency distribution; marks less than 20,lessthan 40,lessthan 60,lessthan 80,lessthan 100....no:of students 4,10,28,36,50

Answer 1

Hi friend..

Hope this helps you...

Answer 2

Answer:

50.91 marks

Step-by-step explanation:

as given data

modal class= 40-60

h=20

f₁=18

f₀=6

f₂=8

l=40

as we know

mode=

$</p><p>l+\frac{f₁-f₀}{2f₁-f₂-f₀}*h\\\\=40+\frac{18-6}{2*18-8-6}*20\\\\=40+\frac{12}{22}*20\\\\=\frac{560}{11}\\\\=50.91</p><p>$

so the mode of this data is 50.91 marks