Kristina Karganova invites 11 relatives to a party: her mother, 2 aunts, 2 uncles, 2 brothers, 1 male cousin, and 3 female cousins. If the chances of any one guest arriv first are equally likely, find the probabilities that the first guest to arrive is as follows. (a) A brother or an uncle (b) A brother or a cousin (c) A brother or her mother .... (a) Find the probability that the first guest to arrive is a brother or an uncle. (Type an integer or a simplified fraction.)

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