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Find the Expected Value of the Random Variable in the Experiment

Question 128

Multiple Choice

Find the expected value of the random variable in the experiment.
-A bag contains six marbles, of which four are red and two are blue. Suppose two marbles are chosen at random and X\mathrm{X} represents the number of red marbles in the sample.


A) 1.4
B) 1.33
C) .933
D) 1

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