What is mean absolute deviation (MAD) and how do I find it?

Steps to find MAD:

Step 1. Calculate mean() of the data using formula: ,  where x denotes data points and n is the number of data points.

Step 2. Calculate distance of each data point from mean :

Distance =

Step 3. Divide  distance of each data point from mean by n:

MAD = , which is the final computation to find MAD.

solution:

→c= a b , that is product of a and b is possible only when when a is m × n matrix and b is n × p matrix.

that is, number of columns of a= number of rows of b.

so, size of matrix , c= a b is , if a = (m × n)matrix

b= (n × p)matrix

then a b = [ (m × n)matrix] ×[   (n × p)matrix ]

→→c= a b= [m × p ] matrix

→→size of product a b will be equal to = number of rows of a × number of columns of b