Question

pls give the formula for arithmetic mean!

Answer 1

hope it is helpful pls mark as brainliest

Answer 2

formulas of calculating arithmetic mean are
1> direct method

mean = sum of number / no of observation
mean = summation FX / summation F

2> short cut method

A + summation dx/summation F
A-> assumed mean
dx= x- A

3> step deviation method

A+ summation ds/ summation F x c


ds = dx/ common difference

c = common difference