An urn contains n chips numbered 1 through n. Assume that the probability of choosing chip i

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An urn contains n chips numbered 1 through n. Assume that the probability of choosing chip i is equal to ki, i = 1, 2. . . n. If one chip is drawn, calculate E (1 X), where the random variable X denotes the number showing on the chip selected. [Hint/ Recall that the sum of the first n integers is n (n +1)/2.]
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