Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) §8.4 Probability and Calculus, #25 · Probability · Continuous distributions

Find … if

Find $σ^{2}$ if $p_{0} = 1/3, p_{1} = 1/3, p_{2} = 1/3$ . Use $Σ (n - μ)^{2} p_{n}$ and also $Σ n^{2} p_{n} - μ^{2}$ .

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Gilbert Strang, Calculus, 3rd edition (Wellesley-Cambridge Press; MIT OpenCourseWare RES.18-001) · §8.4 Probability and Calculus, #25

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