B. Solve the following problems completely. 1. A coin is tossed thrice. Let the variable X represent the number of heads that result from this experiment . Construct the discrete probability distribution of the random variable X. 2.The table shows the number of cars observed waiting in the line at the beginning of 2-minute intervals between 3pm and 5pm on a certain Friday at a drive in teller in Westwood Saving Bank with the corresponding frequency of occurrence. Find the probability distribution of the random variable X that denotes the number of cars observed waiting in line