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7. DETAILS BERRAPCALC7 11.2.011.MI. For the probability density function f(x), find the following values. (Round your answers for (b) and (c) to three decimal places.)

7. DETAILS BERRAPCALC7 11.2.011.MI. For the probability density function f(x), find the following values. (Round your answers for (b) and (c) to three decimal places.) f(x) = 7x on [0, 1] (a) E(X) = (b) Var(X) = ( c) o( X ) =

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