Of 35 employees at Pizza Boy, 5 work as cashiers, 20 work as waiters, and 10 work as cooks. Suppose 10 employees are chosen at random to work on Tuesday evening. Round all answers to 3 decimal places. a. Determine the probability that there are 2 cashiers, 6 waiters, and 2 cooks. b. Determine the probability that 3 are cashiers and 7 are waiters. c. Determine the probability that none of the 10 are cooks. d. Determine the probability that all 10 are waiters.