Problem 3.6 a) Create six variables in the workspace X1, X2, X3, Y1, Y2, Y3. Using Matlab's input function, assign values of your choice to these variables, and save the si variables as "Problem6.mat. b) Create a program that will load i) the file 'Problem..mat', ii) calculate the mean of the six variables X1, X2, X3, Y1, Y2, Y3, and iii) viewing X = (X1, X2, X3) and Y (Y1, 72, 73) as coordinates in the 3D space, and calculate the distance between the points X and Y c) Display the mean of the six variables X1, X2, X3, Y1, Y2, Y3 and the distance between the points X and Y with messages "The mean of the numbers is .", and in the next line using another disp command), urite "The distance between the points X and Y is