Liam has classes three days a week. He attends classes three days a week 80% of the time, two days 15% of the time, one day 4% of the time, and no days 1% of the time. Suppose one week is randomly selected. (a) Complete the probability distribution table. X P(x) 0 1 2 3 (b) Is this a valid probability distribution? Explain why or why not? (c) Find the probability that Liam attends class on 2 or fewer days of the week. (d) Compute the expected value of X. (e) Interpret the expected value of X in the context of this problem.