Dont forget to divide by the square root of n in the denominator. We can either define sample mean as an estimate of the population mean or the average of all the measurements in the sample. The mean average for the list will appear in the cell you selected.
Eventually we divide the sum by number of.
The following is the formula for the sample mean x of a set x1. I derive the mean and variance of the sampling distribution of the sample mean. Population size refers to the total number of people within your demographic. S x.