Question: Let f be a joint density function of a pair of continuous random variables X and Y. (a) Write a double integral for the probability

Let f be a joint density function of a pair of continuous random variables X and Y.
(a) Write a double integral for the probability that X lies between a and b and Y lies between c and d.

(b) What properties does f possess?
(c) What are the expected values of X and Y?

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