Where is the population variance is the sample variance and m is the midpoint of a class. Similarly such a method can also be used to calculate variance and effectively standard deviation. Multiply or divide by the square of that constant.
Divide the sum 175 by the number of data points 7 or.
Where is the population variance is the sample variance and m is the midpoint of a class. Statistics Formula Sheet - Mean Median Mode Variance CV - Teachoo. So we use MEDIANB2B12. X Y Z Person 23 1 2 53.