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Question

Let X and Y be two independent Poisson variates with rate 5 and 10, respectively, then the E(XY = 2) is equal to:

This question was previously asked in
SSC CGL 2024 (Tier-I) Previous Year Paper (17-Sep-2024) (Shift 3)
The correct answer is

5

For independent Poisson variables, the expectation of the product is given by the product of their individual expectations. Therefore, E(XY) = E(X) * E(Y) = 5 * 10 = 50. However, the specific query asks for E(XY=2), which simply equals 2 based on the given context.

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