A spinner marked off in five equal-sized regions, numbered 1 comma 2 comma 3 comma 4 comma and 5, is spun twice. Let the random variable X be the nonnegative difference between the numbers of the regions where the pointer stops, and define a probability mass function g(x)equalsP(Xequalsx). a) State the range of X. b) Write g as a set of ordered pairs. c) Draw a probability distribution as a histogram. d) Find g(0), and explain what this number represents. e) Find mu, and explain what this number represents.