Suppose there are 100 students in your accounting class, 10 of whom are left-handed. Two students are selected at random. a. Draw a probability tree and insert the prob- abilities for each branch. What is the probability of the following events? b. Both are right-handed. c. Both are left-handed. d. One is right-handed and the other is left-handed. e. At least one is right-handed 6.67 Refer to Exercise 6.66. Suppose that three people are selected at random. a. Draw a probability tree and insert the probabilities of each branch. b. What is the probability of no right-handers, one right-hander, two right-handers, and three right-handers?