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Mathematics, 17.04.2020 02:30 ira51
You have 12 marbles: 5 are vermillion, 4 are emerald, and 3 are ultramarine. You divide them at random in four groups of 3 to give to your four best friends. Let X be the number of friends that receive 3 marbles of all distinct colors (one marble of each color). Find E(X) and Var(X).
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You have 12 marbles: 5 are vermillion, 4 are emerald, and 3 are ultramarine. You divide them at rand...
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