73 lines
1.2 KiB
Plaintext
73 lines
1.2 KiB
Plaintext
ans
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030276
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(1) 确定性现象; (2) 随机现象; (3) 确定性现象; (4) 随机现象
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009736
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$\Omega = \{1,2,3,4,5,6\}$, $A=\{2,3,4,5,6\}$, $B=\{1,3,5\}$, $C=\{3,4,5,6\}$
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010539
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$\Omega=\{W_1B_1,W_1B_2,W_1R_1,W_1R_2,W_1R_3,B_1B_2,B_1R_1,B_1R_2,B_1R_3,B_2R_1,B_2R_2,B_2R_3,R_1R_2,R_1R_3,R_2R_3\}$, $A=\{W_1B_1,W_1B_2,W_1R_1,W_1R_2,W_1R_3\}$, $B=\{W_1B_1,W_1B_2,B_1B_2,B_1R_1,B_1R_2,B_1R_3,B_2R_1,B_2R_2,B_2R_3\}$. 或者$\Omega' = \{WB,WR,BB,BR,RR\}$, $A'=\{WB,WR\}$, $B'=\{WB,BB,BR\}$
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000218
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$\dfrac 25$
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000219
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$\dfrac 3{10}$
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000223
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(1) $\Omega = \{W_1B_1,W_1B_2,W_2B_1,W_2B_2,W_3B_1,W_3B_2,B_1B_2\}$; (2) $\dfrac 3{10}$; (3) $\dfrac 35$
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002662
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$\dfrac 38$
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002664
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$\dfrac{16}{33}$
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003660
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$\dfrac 15$
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010544
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B
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000227
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$\dfrac 23$
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009745
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证明略
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010550
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$\dfrac 35$
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010540
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(1) $\Omega = \{BBGG,BGBG,BGGB,GGBB,GBGB,GBBG\}$等; (2) $A=\{BGBG,GBGB\}$等; (3) $B=\{BGBG,BGGB,GBGB,GBBG\}$等
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010535
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(1) 错误; (2) 错误; (3) 正确
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000222
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$\dfrac 3{10}$
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003585
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$\dfrac 3{10}$
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003787
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B
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004647
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$\dfrac 34$
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009349
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$\dfrac 1{28}$, $\dfrac 37$
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000229
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$\dfrac {13}{42}$
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009741
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$P(A_0)=\dfrac 13$, $P(A_1)=\dfrac 12$, $P(A_2)=0$, $P(A_3)=\dfrac 16$
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010545
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$0.10$
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009744
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证明略 |