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µoªí©ó¡G Dec 13 2006, 16:26 ¡@
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1. ¦pªG N µ¥©ó5 (§Y¬O§á³J¾÷¦³5´Úª±¨ãÅý§A©â):

a. ©â¤@¦¸«K©â¨ì§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?

b. ©â¡u¤£¦h¤£¤Ö¡v3¦¸¤~©â¨ì§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?

c. ©â¡u3¦¸©Î3¦¸¤§¤º¡v¤~©â¨ì§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?

d. ©â3¦¸¡uÁ٩⤣¨ì¡v§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?

e. ¨º»ò¥u©â5¦¸´N¶°»ô1®M5´Úªº¾÷·|¬O¦h¤Ö?

f. ©â¤»¦¸³£¬O¦P¤@´Úªº¾÷·|¬O¦h¤Ö?

g. ©â¤»¦¸³£¬O¬Y¨â´Úªº¾÷·|¬O¦h¤Ö?

h. ©â¡u3¦¸©Î3¦¸¤§¤º¡v¤~©â¨ì§A·Q­nªº¡u¨â´Ú¡vªº¾÷·|¬O¦h¤Ö? (¨â´Ú³£¤J¤â)

i. ©â¡u¤£¦h¤£¤Ö3¦¸¡v¤~©â¨ì§A·Q­nªº¡u¨â´Ú¡vªº¾÷·|¬O¦h¤Ö? (¨â´Ú³£¤J¤â)

j. ©â 5 ¦¸¡uÁ٩⤣¨ì¡v§A·Q­nªº¡u¨â´Ú¨ä¤¤¤@´Ú¡vªº¾÷·|¬O¦h¤Ö?


2. ¦pªG N µ¥©ó2:

a. ©â¡u¤£¦h¤£¤Öi¦¸¡v´N¶°»ô1®M2´Úªº¾÷·|¬O¦h¤Ö?

b. ¥­§¡©â¦h¤Ö¦¸¤~¯à¶°»ô1®M2´Ú? (Expectation)




(¥H¤U³o­Ó¤ñ¸ûÃø)

3. ¦pªG N ¬O¥ô¦ó¾ã¼Æ:

a. ©â¡u¤£¦h¤£¤Öi¦¸¡v´N¶°»ô1®MN´Úªº¾÷·|¬O¦h¤Ö?

b. ¥­§¡©â¦h¤Ö¦¸¤~¯à¶°»ô1®MN´Ú? (Expectation)

¥»½g¤å³¹¤w³Q ªüåÈ ©ó Dec 13 2006, 16:33 ½s¿è¹L


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µoªí©ó¡G Dec 14 2006, 16:15 ¡@
Quote Post


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µoªí¼Æ¡G 5,279
©ÒÄݸs²Õ¡G ¤@¯ë
µù¥U¤é´Á¡G 8-17-2004

¬¡ÅD¡G16
Án±æ¡G1208


Expectation ¤j·§¥i¥H¬Ý¦¨¥­§¡¼Æ, ¨Ò¦p, ¦pªG°ÝÂY¡u°©¤L¤S¡v¤l("¦¡¥J", ·L³n«÷­µ¥´¤£¨ì...), ÂI¼ÆªºExpecttation ¬O 1/6 x 1 + 1/6 x 2 + 1/6 x 3 + 1/6 x 4 + 1/6 x 5 + 1/6 x 6 = 3.5, ¦pªG¶R¤j¤p(¤¤¤j/¤p1³­1, ¦ý³ò"¦¡"³q±þ), ¨º¶R1¤¸¤jªºµ²ªGexpectation ¬O 37/72 x $-1 + 35/72 x $1 = -$1/36 , §Y¬O§A¨C¶R¤@¤¸¤j¤p, ¥­§¡§A´N·|¿é1/36¤¸.

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µoªí©ó¡G Dec 16 2006, 16:30 ¡@
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¤K«~©x
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µoªí¼Æ¡G 248
©ÒÄݸs²Õ¡G ¤@¯ë
µù¥U¤é´Á¡G 9-24-2003

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1. ¦pªG N µ¥©ó5 (§Y¬O§á³J¾÷¦³5´Úª±¨ãÅý§A©â):

a. ©â¤@¦¸«K©â¨ì§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?
20%
b. ©â¡u¤£¦h¤£¤Ö¡v3¦¸¤~©â¨ì§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?
0.8x0.8x0.2=0.128
c. ©â¡u3¦¸©Î3¦¸¤§¤º¡v¤~©â¨ì§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?
0.128+0.2+0.16=0.488
d. ©â3¦¸¡uÁ٩⤣¨ì¡v§A·Q­nªº¤@´Úªº¾÷·|¬O¦h¤Ö?
1-0.488 ©Î¬O 0.8ªº3¦¸¤è =0.512
e. ¨º»ò¥u©â5¦¸´N¶°»ô1®M5´Úªº¾÷·|¬O¦h¤Ö?
1x0.8x0.6x0.4x0.2=0.0384
f. ©â¤»¦¸³£¬O¦P¤@´Úªº¾÷·|¬O¦h¤Ö?
0.2ªº6¦¸¤è=0.000064
g. ©â¤»¦¸³£¬O¬Y¨â´Úªº¾÷·|¬O¦h¤Ö?
0.4ªº6¦¸¤è=0.004096
h. ©â¡u3¦¸©Î3¦¸¤§¤º¡v¤~©â¨ì§A·Q­nªº¡u¨â´Ú¡vªº¾÷·|¬O¦h¤Ö? (¨â´Ú³£¤J¤â)
0.4*0.2+0.4*0.8*0.2+0.6*0.4*0.2=0.192
i. ©â¡u¤£¦h¤£¤Ö3¦¸¡v¤~©â¨ì§A·Q­nªº¡u¨â´Ú¡vªº¾÷·|¬O¦h¤Ö? (¨â´Ú³£¤J¤â)
0.4*0.8*0.2+0.6*0.4*0.2=0.112
j. ©â 5 ¦¸¡uÁ٩⤣¨ì¡v§A·Q­nªº¡u¨â´Ú¨ä¤¤¤@´Ú¡vªº¾÷·|¬O¦h¤Ö?

0.4*0.8^4
+0.6*0.4*0.8^3
+0.6^2*0.4*0.8^2
+0.6^3*0.4*0.8
+0.6^4*0.4
=0.49984
¦pªGÃD¥Ø·N²[¥]§t"2´Ú³£¨S©â¨ì"ªº¸Ü = 0.5776
2. ¦pªG N µ¥©ó2:

a. ©â¡u¤£¦h¤£¤Öi¦¸¡v´N¶°»ô1®M2´Úªº¾÷·|¬O¦h¤Ö?
N=2 => 1/2^(i-1)

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²Î­p¾Ç¤Ó¤[¨S¸I³£§Ñ¥ú...«á­±ªº¤Ó³Â·Ðºâ.Ãi¤F@@

¥»½g¤å³¹¤w³Q §b¨Ì ©ó Dec 16 2006, 16:44 ½s¿è¹L


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µoªí©ó¡G Dec 17 2006, 14:35 ¡@
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µoªí¼Æ¡G 5,279
©ÒÄݸs²Õ¡G ¤@¯ë
µù¥U¤é´Á¡G 8-17-2004

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QUOTE (§b¨Ì @ Dec 17 2006, 12:30 AM)

f. ©â¤»¦¸³£¬O¦P¤@´Úªº¾÷·|¬O¦h¤Ö?
0.2ªº6¦¸¤è=0.000064
g. ©â¤»¦¸³£¬O¬Y¨â´Úªº¾÷·|¬O¦h¤Ö?
0.4ªº6¦¸¤è=0.004096

ÃD¥Ø¤£¬O«ü«ü©w·Q­n¬Y¤@/¤G´Ú, ¦Ó¬Oµ²ªG¬O©â¥X¨Ó¥u¦³1/2´Ú




j. ©â 5 ¦¸¡uÁ٩⤣¨ì¡v§A·Q­nªº¡u¨â´Ú¨ä¤¤¤@´Ú¡vªº¾÷·|¬O¦h¤Ö?

0.4*0.8^4
+0.6*0.4*0.8^3
+0.6^2*0.4*0.8^2
+0.6^3*0.4*0.8
+0.6^4*0.4
=0.49984

³o¬O¡u¤£¦h¤£¤Ö¡v©â¨ì¡u¨â´Ú¨ä¤¤¤@´Ú¡v.



¦pªGÃD¥Ø·N²[¥]§t"2´Ú³£¨S©â¨ì"ªº¸Ü = 0.5776

³o­Ó¬O«ü ¡u©â¨ì1´Ú¡v OR ¡u1´Ú³£©â¤£¨ì¡v






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¥»½g¤å³¹¤w³Q ªüåÈ ©ó Dec 17 2006, 14:53 ½s¿è¹L


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