Question
9 balls, which are numbered 1 thru 9, are placed in a bin. 3 balls are drawn, without replacement, from the bin. Let X be
9 balls, which are numbered 1 thru 9, are placed in a bin. 3 balls are drawn, without replacement, from the bin. Let X be the number of balls, out of the 3 drawn, that have even numbers. Let Y largest number from the 3 balls that are drawn. What is the Expected value of, X? E[X]= What is the Expected value of, Y? E[Y]= What is the Covariance of, X,Y? Cov[X,Y]= Are X and Y independent? Select all that apply A. If covariance is 0, it will be B. No C. It depends on which interaction you look at D. Yes E. None of the above Consider X=2 and Y=7, is this interaction mutually exclusive? Select all that apply A. Yes B. As long as it is independent C. If covariance is 0, it will be D. No E. None of the above What is the Expected Value of, 7X4Y+9? E[7X4Y+9]= What is the Variance of, 7X4Y+9? V[7X4Y+9]= What is the Probability of, P(X=2Y=4)? P(X=2Y=4)=
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