Question

on dividing the sum of observation by total number of observations we obtained the ​

Answer 1

It is defined as the summation of all the observation is the data which is divided by the number of observations in the data. The formula of to calculate arithmetic mean is sd/N where sd is the summation of all the observations in the data and N is the number of observations in the data.

Answer 2

Answer:

On dividing the sum of observation by total no of observation, we get, Arithmetic Mean of all observation.

That means, middle of all observations.