Question

find mean by direct method​

Answer 1

Step-by-step explanation:

Arithmetic Mean by Direct Method - formula

∑i=1nf= Sum of all the frequencies. This is also denoted by N. ∑i=1nfixi= Sum of the product of frequencies and corresponding observations.

Answer 2

Answer:

MEAN= 125

Step-by-step explanation:

HERE NUMBER OF OBSERVATIONS ARE 5