Question

For a given frequency distribution, ∑fidi = -50, ∑fi = 200 and A = 62.5. Then find mean​

Answer 1

Answer:

the mean = 62.75

Step-by-step explanation:

∑fidi = -50,

∑fi = 200 and

A = 62.5.

Then mean= A + ∑fi /∑fidi

= 62.5 + 50/200

= 62.5 + 1/4

= 62.5+ 0.25

= 62.75

the mean = 62.75