A spinner marked off in eight equal-sized regions, numbered 1, 2, 3, 4, 5, 6, 7, and 8, is spun once. Let the random variable X be the number of the region where thepointer stops, and define a probability mass function f(x)=P(X=x).a) State the range of X.b) Write f as a set of ordered pairs.c) Draw the probability distribution as a histogram.d) Find f(8), and explain what this number represents.e) Find ?, and explain what this number represents.