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Math Chapter Wise question with answer

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Question #50,236
Math Chapter Wise Statistics And Probability English MCQ DSSSB 23 SEP 2018 (9 AM-11 AM)

Q.If X is a random variable that takes any value xi, i≥1 with the corresponding probability P(xi) and E[X] denotes the expected value of X, then E[ax2 +bx+c] is-

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