logo资料库

概率论与数理统计课后习题答案.pdf

第1页 / 共109页
第2页 / 共109页
第3页 / 共109页
第4页 / 共109页
第5页 / 共109页
第6页 / 共109页
第7页 / 共109页
第8页 / 共109页
资料共109页,剩余部分请下载后查看
chap1习题
chap2习题
chap3习题
chap4习题
chap5习题
chap6习题
chap7习题
chap8习题
5:z fÆ;!v9 D "  < 0vX .}
| 4v^!5d"hdg4`SEh`Y^^6:E"=1w Y2005hhdh<hyki<4hh d1!d! ^h`Y^^6:yG`Y^^6:hdD.V`Y^^ 6:h!hi!h`Y^^6::h 4Gd"6wFBw}02`Y^^6:!ihR
j"6W0 T.k F g dF g[e  Æ;x6  {  ~ g gW g[e T } 
 5  ~E|j#Y 93i 5℄℄F?ÆA{Ci!/GCE |j#Y0F \ÆFC A{ z`6hF3 FUÆ{\}[_F TU4< 44W344h53[_E|jv F 3 j 9>< ! `:32;CDkY U >7;_X℄59;h `:3GB 2CDkY|jf5 ℄ `:3}: !52/13_:z h3< _X℄℄59 h5 9!/:z5℄ 4  hg_:[3f<A=f<A ℄4D℄Gh℄ZGh}E℄#YdF  _X℄℄59!G:3_:35℄:3GBGx gj2 h{3Æ 29/?E4E; EG:z gh4℄U; :_~ `55 <=dY Y<:Ai;g3 g g℄jgYzTF℄j g9gg  (g).℄jgGÆaFg  /1gRh3C2523:zg: 3/6e8FC62g~#B ℄F|FZ3}
v 21 hgRf_g6h0FF= Æ gG<1℄jg;VF:z h j9.?Fh37T:z .? gy< Ej993| 93.!5℄>jk4k9{GB 5`e  kG℄g v_{A:3g5=  `zGB9b}:5/ 8j8j _?X [3 3jg Fz℄GB`;FGB kVF/16_4}<.!Fj9X<[ /93 g j℄G;TAV252?X2j/1:Av |?XW3/1G6h <~6</6i /1 g;G/1:Æk/xw~  5:zjgg ~0Fg (A)  g:3/6g (B) <:3G`{:A=g vk Fg 7 ℄jgg gh:_ ;j9℄5g/G_w{T℄ BC=d{55` xY~~_/Gg/6{9 7 YU~ {F℄^ 2dCk Bg=Bg A ℄ 3jg;h>Ægb{>Æk\F Æ<Æg℄ÆY^:jF3jge ;bF/#Æ W;<3jg; Fk \F~ÆÆ<Æ 3C 3jgFg3 ^gZfÆ1F_ F"37GgG; 3jgE 5:zjg;R3 2006 8
1 1 \ 1=#}:e g1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \ 2=#ebR g2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 \ 3=`#ebR g3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 \ 4=#Z G? g4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 \ 5=X ^D31^ g5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 \ 6=  ZB g6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 \ 7=U h g7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 \ 8=xz7 g8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92 13 27 47 65 72 80 92 vi
(A) ℄ 1> ~ 0, y > 0, z > 0, x + y + z = 1}. (2) AB = {x|1 6 x 6 2}; (4) AB = {x|0 6 x < 1}. (1) A ∪ B; (2) AB; (3) A; (4) AB.
2 (2) A ∪ B ∪ C. (5) A(B ∪ C). (6) (A B C) ∪ (ABC) ∪ (A B C). (7) (ABC) ∪ (ABC) ∪ (ABC). Yjkfv`x d  (1) A B C. (3) (AB) ∪ (AC) ∪ (BC)7 (ABC) ∪ (ABC) ∪ (ABC) ∪ (ABC). (4) A∪ B ∪ C7 (A B C)∪ (A B C)∪ (ABC)∪ (A B C)∪ (ABC)∪ (ABC)∪ (ABC)7 ABC. (8) (A B) ∪ (A C) ∪ (B C)7 (A B C) ∪ (A B C) ∪ (ABC) ∪ (A B C). 4.! Te;Ge; =  (1)e; (2)e; (3)e; (4)e; (5)Ge; (A − B) ∪ B = A ∪ B. (6)Ge; (A ∪ B) − B = A − B. 5.8 P (A) = 0.4, P (AB) = 0.2, P (A BC) = 0.1,6 P (A ∪ B ∪ C).  6.8 P (A) = 0.4, P (B) = 0.25, P (A − B) = 0.25,6 P (AB), P (A ∪ B),  RZ P (A − B) = P (A) − P (AB),:U = P (A) − P (A B) − P (A B C) = 1 − P (A) − P (AB) − P (A B C) = 1 − 0.4 − 0.2 − 0.1 = 0.3, (1) A ∪ B = AB ∪ B; (3) A − B = AB; (5) (A − B) ∪ B = A; (2) A = AB ∪ AB; (4) (AB)(AB) = ∅; (6) (A ∪ B) − B = A. P (A B C) = P (A B) − P (A B C) P (A ∪ B ∪ C) = 1 − P (A B C) = 0.7. P (B − A), P (A B). P (AB) = P (A) − P (A − B) = 0.4 − 0.25 = 0.15, P (A ∪ B) = P (A) + P (B) − P (AB) = 0.4 + 0.25 − 0.15 = 0.5, P (B − A) = P (B) − P (BA) = 0.25 − 0.15 = 0.1, P (A B) = 1 − P (A ∪ B) = 1 − 0.5 = 0.5.
分享到:
收藏