Report - 期待値と分散 E(aX+b) = aE(X) + b E(X+Y) = E(X) + E(Y) E(XY) = E(X) E(Y) X, Y: 独立 Var(X) = E(X 2 ) – {E(X)} 2 Var(aX+b) = a 2 Var(X) f(X)f(X+b) b X 0 X 0 +b X.

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