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Title: Author: FZR Last modified by: Anyone Created Date: 5/22/2003 5:24:27 AM Document presentation format: – PowerPoint PPT presentation

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Title: 1.


1
????????
  • ?1? ???????

2
??????
  • ????????
  • ??????????
  • ?????????
  • ??????????????
  • ????????????
  • ????????????
  • ??????????
  • ??????????

3
  • ????
  • 1.  ?????????????????????6?IP??,??????????
  • 2.  ???????????????????????
  • ????????????VOD?????????????????????,????
  • 3 . ??????????????????????????,??????
    ??????,?????????????????????????

4
1.1 ????
  • 1.1.1 ?????????
  • ??????????,????????????????,??????????????????
    ??????
  • ????????????????????,?????????,???????????????
    ????????
  • ??,???????????,??????50,??????????,??????????
    ??50?
  • ?????????????????????????????E????

5
  • ????????????
  • 1.????????????
  • 2.?????????????
  • 3. ??????????????
  • ??????????????,?????????????????????????????U???,?
    ???????,
  • ?
  • ????U????????????,???????????????????????????A?B?C
    ????
  • ????U??????,??F????????

6
  • 1.1.2 ????????
  • 1?????????
  • ????A????????B??,?????A?????B,????B????A,??
  • ??,?????,
  • ?? ,?? ,??AB
  • 2?????
  • ??A?????B??,????A???B??,??AB?
  • ??A?????B??,????,????A???B????????

7
  • ???????????
  • ????????????,?
  • A?????????
  • B???????????
  • ??????,?
  • C???????
  • D????????
  • ?
  • ???A?????B?????,??
  • ??????,???????,???????,??CD?

8
  • ?????????????????,?
  • A???????,B???????,
  • E?????, ????A?B??E?
  • ???E??,??????A??????B??????A?B????,???A?B???????
    ?? EAB
  • ???,??????????2?,A1???1????,A2???2????,B??
    ?1?????
  • ???1?????????,???1????,??2???????? BA1 A2

9
  • 3?????
  • ??A???B????,????A???B??,??AB
  • ??,??????,?C???????,
  • D???????,F?????
  • ????C?D??F
  • ??????????????,??????,??F???,??C?D?????????,??C?D
    ????,?????F?????FCD?
  • 4?????
  • ??A?????B???,????A???B??,??A-B?

10
  • 5???????
  • ????A???B???????,????A???B??????????ABF
  • 6???????????
  • ?????????????????????A???B??????,???A???B?????
    ??????A???B?????,???A???B???,??B?,??
  • ??A???B????????
  • ????ABF,ABU?
  • ??,

11
  • ???????????????
  • ???? ,?
  • ??,??A-B???B-A?????
  • ???n??? ??????,??????????,????
    ??????????
  • 1.1.3 ???????????
  • ??????????????????
  • ???????????????????????,????????

12
  • ?1 ??????

13
  • ????
  • ?????????,????????,
  • ?A1???????,A2?????????A1,A2??????????????
  • B???????,C?????????,D????????,E????????
    ?
  • ?
  • BA1A2, ,D ,EA1A2
  • ??B?C,B?D,C?D,C?E????????,C?E??????

14
1.2 ???????
  • 1.2.1 ???????
  • ??????????????????????????
  • ?????????????n???,??A???m?,??m??A???????,??
    ????A?????,?fn(A)???
  • ???n????,??A???fn(A)?????p(0p1)????,????A?????
    ,p???A??????????,??P(A)p
  • ???? P(A)1
  • ????? P(A)0

15
  • ?????????
  • ??1 ??????A,
  • ????,????A???m0,mn?
  • ??2
  • ??3 ??????????????
  • ?
  • ?? ?? ?

16
  • 1.2.2 ????
  • ?????????????????
  • ???????n??????,??n????????????,???A????n?????k
    ???,???A??????P(A)k/n,???????????
  • ?1 ?????,?C4,5,6?D4,6????
  • ????????????6???,?6???????????,???????
  • ??C??3????????,D??2????????,?P(C)3/6,P(D)2/6?

17
  • ?2?10000????????1?,???2?,???10?,???100?,???1?????
    ????
  • ?n10000,k1210100113
  • P(A)k/n113/100000.0113
  • ?????????,?????????????????
  • ??????????
  • ? ?????????????????n,??????????,???????????
  • ? ?????????????????k,
  • ? ? P(A)k/n

18
  • ?3?5??????2???,3????,????2???,?
  • ?????????,
  • ??????,???????????
  • ??5??????2????????C2510?
  • ??????????C221?,P11/100.1
  • ??????,???????????C12C136,P26/100.6

19
  • ?4 ???4????3????????3??,????2???????
  • ??A1???2???,A23?????,?A1A2F?A???2???,A
    A1A2
  • ?????????? ,
  • ??A1???? ,
  • ??A2???? ,
  • ?
  • ???????,??????????????

20
  • ??2 ? ?,?P(B-A)P(B)-P(A)
  • ??,????? P(B-A)?P(B)-P(A),
  • ??P(B-A)P(B)-P(A),
  • ??,?19?9?????????,??????2??????3??????
  • ??A??3??,B??2??,
  • ?B-A??2??????3??,
  • A3,6,9,B2,4,6,8,B-A2,4,8,
  • P(A)3/9,P(B)4/9,P(B-A)3/9?4/9-3/9

A
A
21
  • 1.3 ?????????
  • 1.3.1 ????
  • ?????? ????????A,B?????????????????
  • P(AB)P(A)P(B)
  • ?1 ?????,???1??6?????
  • ??A??1?,B??6?,AB????????1??6??????AB
  • P(AB)P(A)P(B)
  • ??1
  • ?A?????,?
  • ??????A??????,???? ????

22
  • ?2. ???????2?,????????????0.8,??????????0.3,??????
    ????0.4,
  • ? ??????????,
  • ?????????????????
  • ??A1?????,A2?????,
  • ?P(A1A2)0.8,
  • ?
  • 1-0.80.2
  • ????????????????????????????????,?????????

23
  • 2003?1??????3
  • ? P(A)0.8,P( )0.5,?P(AB)

24
  • ??????
  • ????????A,B,?
  • P(AB)P(A)P(B)-P(AB)
  • ?3 ???????0.82,???????0.74,????????????0.63,?????
    ??????????
  • ??A??????,B??????,AB ???????,AB??????
    ???
  • P(AB)P(A)P(B)-P(AB)
  • 0.820.74-0.630.93

25
  • 1.3.2 ?????????
  • ??????????B??????,??A??????
  • ??,
  • ???????
  • ???????,
  • ??????????,??????????
  • ??B????,A?????
  • ??????1???,3????,???????????3/4,???7/10?3/10??????
    ???
  • ???????P(AB) ????

26
  • ????
  • ?P(A)?0,P(B)?0,???A,B????????????????????????
    ???????????????
  • P(AB)P(AB)P(B) ? P(AB)P(BA)P(A)
  • ?8 ???10????,??6???,4???,??????????,????????????
  • ??A???????,B???????,AB???????,??????????
    ??9????,??5???,4????
  • P(BA) ,P(AB)P(BA)P(A)

27
  • ????????????????????
  • 10?????????,????????10?
  • ?,?????? ,?????????9???,
  • ????????? ,??????????
  • ???????????????????????
  • ???????????????? ,?????
  • ?????? ,??,???????
  • ??,B??????,A?????
  • ??,?????????
  • ??,?????????

28
  • 1.3.3 ?????
  • ????? ? ?????????,?
    ,??????A,?
  • ? ?????????????P(A)?
  • ?10 ???10??,????2???,??????2??,????????????
  • ?? A??????,
  • B??????, ????????,

29
  • ?12 ???4????,?????????15,
  • 20,30,35,??????0.05,0.04,0.03,0.02,
  • ??????????1?,?????????
  • ?? A????,Ak???k???????
  • P(A1)15,P(A2)20,P(A3)30,P(A4)35,P(AA1)0.
    05,P(AA2)0.04,P(AA3)0.03,P(AA4)0.02,??

30
  • 1.4 ?????
  • 1.4.1 ??????
  • ????????????????????,????????????
  • ??,???5????3???,???2??,???????????,??????,????
    ????????,??????????(???????)???????????,??????????
    ??,???????
  • ????A?B????,?
  • P(AB)P(A)P(B),?????
  • ????,??????????????

31
  • ?2 ???????,?????1???????
  • ??A1?1???1?,A2?2???1?
  • A1,A2????????A?????1?,AA1A2
  • P(A)P(AB)P(A)P(B)
  • ?3 ???????,???????0.7,???????0.8,????????????????
    ??????????
  • ??A???,B???,C?????,D????????CAB,DA
    B,AB????
  • P(C)P(AB)P(A)P(B)0.70.80.56
  • P(D)P(AB)P(A)P(B)-P(AB)0.94

32
  • 2003?1??????4
  • ?????????????????,????????0.01,????????0.0
    2,???????????,??????????????
  • ??A1???????,A2???????
  • ?A1?A2????,?A??????, AA1A2
  • ???? ,?P(A)1-0.010.99

  • ,?P(B)1-0.020.98
  • ? A1?A2????
  • ?P(A)P(A1A2)P(A1)P(A2)0.990.98
  • 0.9702
  • ??????????????0.9702?

33
  • ??
  • ??A?B??????,?
  • ?????????
  • ?? ?????
  • ??, ???????????????
  • ?????????????????????
  • ????A?B?C????,?????
  • P(ABC)P(A)P(B)P(C),????P(AB)P(A)P(B),
  • P(AC)P(A)P(C),P(BC)P(B)P(C)?

34
  • 1.4.2 ?????
  • ??????????n????????????????
  • ???????,????A????p,???n??????,??A??k?????
  • P(??A??k?)
  • ??,???????????0.6,????5?,?????3?????????2?????
  • ? P(??3?)
  • P(????2?)1-P(??0?)-P(??1?)

35
  • ??
  • P.12 3,4
  • P.24 6
  • P.37 3,4,7,9
  • P.44 4,6
  • P.65 ???,2,3??
  • ???,3??
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