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Refer to Exercise. Suppose that three people are selected at random. a. Hiram:r a probability tree and insert the probabilities of each branch. b. What is the probability of no right-handers, one right-hander, mo right-handers. and three righthanders? Exercise Suppose there are l students in your accounijng class, 10 of whom are lefthanded. Two students are selected at random. a. [trawlr a probability tree and insert the probabilities for each branch. What is the probability of the following events?I b. Both are right-handed. c. Both are lefthanded. d. I[line is rig hthanded and the other is lefthanded. e. At least one is right-handed