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OpenStudy (anonymous):
An urn contains 3 red marbles and 2 blue marbles. Three marbles are drawn together. Let X be the number of marbles drawn. a) List the probability function of X. b) Find the expected value of X, E(X).
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OpenStudy (m):
X is number of Red or Blue?
OpenStudy (m):
need that to write the probability function.
OpenStudy (anonymous):
red marbles
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