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Suppose that the number of diseased trees per acre, Y , has a Poisson distribution with E Y2 = 110. The diseased trees are sprayed

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Suppose that the number of diseased trees per acre, Y , has a Poisson distribution with E Y2 = 110. The diseased trees are sprayed with an insecticide at a cost of $3 per tree, plus a fixed overhead cost for equipment rental of $50. Letting C denote the total spraying cost for a randomly selected acre, find the expected value and standard deviation for C

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