Question

calculate the mode for the following distribution marks / no of students 0-10/6, 10-20/10, 20-30/12, 30-40/32, 40-50/20​

Answer 1

Answer:

Modal class

=

30−

40

So we have,

l=

30,f

0

=

12,f

1

=

32,f

2

=

20

and

h=

10

⇒

Mode=

l+

2f

1

−f

0

f

2

f

1

−f

0

×

h

=

30+

2×32−12−20

32−12

×

10

=

30+

6.25

=

36.25

∴ Mode

=

36.25