What is a difference between global variable and persistent variables?

How is the random seed for MATLAB's random number generator first initializedin a MATLAB Session?

You've just plotted some data and want to change the color behind the lines you've plotted to black. Which code block will accomplish this?

Which statement will return all the odd numbers from 1 to 9?

What is the size of b? a = [1 2 3]; b = repmat(a,2,3);

Which statement reverses vector a? A = [ 1 2 3 4];

What built-in definition does i have?

How do you access the value for the field name in structure S?

You are in the middle of a long MATLAB session where you have performed many analyses and made many plots. You run the following commands, yet a figure window doesn't pop up on the top of your screen with your plot. What might be the issue? x = [-1:0.1:1]; y = X.^2; plot(x, y)

For which of these arrays do mean, median, and mode return the same value?

Which function could you use for multiple linear regression?