Question

Suppose X and Y are random variables with joint density function.

f(x, y) = 0.1e−(0.5x + 0.2y) if x ≥ 0, y ≥ 0
f(x, y) = 0 otherwise

(a) Is f a joint density function?
(b) Find P(Y ≥ 8). (Round your answer to four decimal places.) Find P(X ≤ 7, Y ≤ 2). (Round your answer to four decimal places.)

Answer 1

a)its a joint function

b.)

Explanation:

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