Deviation Across Mean

Calculate the Mean Deviation about Mean and Standard Deviation for the following distribution:

the following frequency table,find mean deviation from mean

Calculate the mean deviation from mean as well as from median and coefficient of mean deviation from the following data:

Calculate mean deviation from mean of the following series:

The mean deviation from mean of observations 5,10,15,20,...85 is

Calculate the mean deviation about mean

Calcualte the mean deviation about mean for the following data: