Four blue socks, four white socks, and four gray socks are mixed in a drawer. You pull out two socks, one at a time without replacement, without looking. a. Draw a tree diagram along with the possible outcomes and the probabilities of each outcome. b. What is the probability of the event of getting a pair of socks of the same color? c. What is the probability of the event of getting two gray socks? d. Suppose that, instead of pulling out two socks, you pull out four socks. What is the probability of the event of getting at least two socks of the same color?