Continuous random variables with joint pdf
Assume that X and Y are continuous random variables with joint pdf f(x, y) = 6(1 - y) for (x, y) in the region bounded by x = 0, y = x, and y = 1, and f(x, y) = 0 otherwise.
Compute Cov(X, Y).
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Recent surveys point out that 47% of the eligible voters in the US plan on voting this year. If 10 eligible voters are randomly slelected, what is the expected number of people who plan on voting this year?
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