Question

class 10th chapter 14 exercise 14.1 question no. 9th maths by Assumed method ​

Answer 1

Answer:

Formula

The mean of grouped data can be obtained using

i.Direct method

M

=

∑

f

i

x

i

∑

f

i

ii. assumed mean method

M

=

a

+

∑

f

i

d

i

∑

f

i

iii. Step deviation method

M

=

a

+

∑

f

i

u

i

∑

f

i

×

h