Calculate the mean of the distribution given below using the short cut method.
Answers:
Assumed mean (Ai) = 45.5
Σfi = 50, Σfidi = 70.
Mean = Ai + Σfidi/sfi
= 45.5 + 70/50
= 45.5 + 1.4 = 46.9.
Calculate the mean of the distribution given below using the short cut method.
Assumed mean (Ai) = 45.5
Σfi = 50, Σfidi = 70.
Mean = Ai + Σfidi/sfi
= 45.5 + 70/50
= 45.5 + 1.4 = 46.9.