Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §8.4 Probability and Calculus, #13 · Probability · Continuous distributions

… (integrate by parts)

Find the mean value $μ = Σ n p_{n}$ or $μ = \int x p (x) d x$ .

$p (x) = a e^{- a x}$ (integrate by parts)

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §8.4 Probability and Calculus, #13

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