Calculate quartile deviation and its coefficient from the following data:

Using medium and arithmetic mean respectively, calculate mean deviation and its coefficient from the following data:

Calculate the coefficient of range and quartile deviation and its coefficient from the following :

Find out mean deviation and its coefficient of the following data:

Calculate mean deviation and its coefficient from mean from the following data:

Calculate the range and its coefficient from the following data:

Estimate mean deviation and its coefficient from the following data: 7,9,13,13,15,17,19,21,23

Calculate mean deviation and its coefficient from median from the following data:

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