Mathematics, 25.11.2021 07:00 rubieceleste548

Contracts for two construction jobs are randomly assigned to one or more of three firms, A, B, and C. Let X1 denote the number of contracts assigned to firm A and X2 the number of contracts assigned to firm B. Each firm can receive 0, 1, or 2 contracts. FInd EX1. Find VarX1

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