Given the random variables x and y in problem 421 find a


Given the random variables X and Y in Problem 4.2.1, find

(a) The marginal PMFs PX (x) and PY (y),

(b) The expected values E[X] and E[Y],

(c) The standard deviations σX and σY.

Problem 4.2.1

Random variables X and Y have the joint PMF

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Basic Statistics: Given the random variables x and y in problem 421 find a
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