if there are 3 observations 15, 20, 25 then sum of deviation of the observations from their AM is
1) 0
2) 5
3)-5
4) none of these
pls specify reason as i already know the answer. thnx in advance :)
if there are 3 observations 15, 20, 25 then sum of deviation of the observations from their AM is
1) 0
2) 5
3)-5
4) none of these
pls specify reason as i already know the answer. thnx in advance :)