a) In MATLAB write code that generates the random signals of 10000 rows and 3 columns. The values of the random signals should be between -8 and 8.

b) Write MATLAB code that then extracts only one random signal from the signals generated in part a. (preferably the last column so the size is 10000 x 1). Then quantize the values of the extracted signal into 17 different values (-8-8) and save it to a different variable name.