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Let X denote the number of hours you study during a randomly selected school day. The probability that X can take the values of x, has the following form, where k is some constant. P(X = x) = 0, 1, if x = 0P(X = x) = Kx, if x = 1 or 2P(X = x) = K(5 - x), if x = 3 or 4P(X = x) = 0, otherwisefind the value of k. |
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Answer» ΣP(x) = 1 1 = kx + 5k = kx k = 1/5 |
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