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1( = @ 1( > 2( > 3( 4( > 2( 45 % @ @ > > > @ > > = > 1( 180 2( 162 3 ...

1( = @ 1( > 2( > 3( 4( > 2( 45 % @ @ > > > @ > > = > 1( 180 2( 162 3 ...

1( = @ 1( > 2( > 3( 4( > 2( 45 % @ @ > > > @ > > = > 1( 180 2( 162 3 ...

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797(49 ( E(X) = λ)100−1−e λ(4 2 1P(B) = , P(A) = B A (353 3 P(AU B) 21(393λ 1−e− 100λ(3(2X: 100−e λ(21 (1 (36P(X≥100)e −100λ(11 . λ = (378 8 1−1− e 8(4 1− e−1( µ ± 3(3−1e(21−e 8δ) x (38x1 −f (x) = e 5 x ≥05(⎛ 2 4 ⎞ ⎛ 2 4 ⎞10, 20)(4 ( −10,20 ) (3 ⎜ , ⎟ (2 ⎜ − , ⎟ (1⎝ 5 5 ⎠ ⎝ 5 5 ⎠: f (x) = 3e−3 x X ≥0 (3913e−1 − e−3(4(419:e−3 − e−1(3 (31− (23P(1 < x < 3)e−9 − e−3(2− 3(1(1 (40e−3 − e−9 (1 10 (41 5 . 5 (. )

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