Statistics and Probability Quiz
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A spinner game defines a random variable XX as the number of points you score in one spin. The distribution is: - P(X=1)=13P(X=1)=\tfrac{1}{3} - P(X=4)=13P(X=4)=\tfrac{1}{3} - P(X=7)=13P(X=7)=\tfrac{1}{3} What is the expected value of XX (in points)? (Note: the expected value may not be a possible outcome.)
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