MATLAB: Writing normally distributed error code

Question

Hello all,

I have an equation

Y = aX + E…..

E is error term that is N ~ ( 0 , [ 25 0 ; 0 25] ) , how I can write a code for E in this case know that it will be 2 x1 matrix size. that is normally distibuted with 0 mean and 25 standard deviation

Thank you in advance.

Answer 1

Have a look at: randn, and normrnd.

HTH