Suppose that X and Y are independent Poisson random variables with parameter 2, respectively. Calculate the following probabilities, the conditional expected value covariance: a) P(X=1nY = 2); b) P (X+Y ≥ 1); c) P (X=1|X+Y = 1);

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Chapter1: Combinatorial Analysis
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Suppose that X and Y are independent Poisson random variables with parameters 1 and
2, respectively. Calculate the following probabilities, the conditional expected value and the
covariance:
a) P(X=1nY= 2);
b) P (X+Y ≥ 1);
c) P (X = 1|X+Y = 1);
d) E(X+Y|Y = 1);
e) Cov (X+Y, X - Y);
Transcribed Image Text:Suppose that X and Y are independent Poisson random variables with parameters 1 and 2, respectively. Calculate the following probabilities, the conditional expected value and the covariance: a) P(X=1nY= 2); b) P (X+Y ≥ 1); c) P (X = 1|X+Y = 1); d) E(X+Y|Y = 1); e) Cov (X+Y, X - Y);
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