Catherine Ng is a car seller. Over the years, she has developed the following probability distribution for the number of cars she expects to sell on Saturday. Number of cars sold, X Probability, P(X) 0.10 1 0.20 0.35 3 4 0.10 More than 4 0.00 Table 2-1 (a) Identify the probability that Catherine can expect to sell three cars on Saturday. (b) On average, how many cars can Catherine expect to sell on Saturday? (c) Identify the probability that Catherine can expect to sell at least two cars on Saturday.