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Éèx=1-p£¬n=11881376,Ôò
x=n/n*[(n-1)/n]*[(n-2)/n)*...*[(n-999)/n]
=[(n-1)/n]*[(n-2)/n)*...*[(n-999)/n]
½«Æä·ÖΪÈýÏî:x=x1*x2*x3
x1=[(n-1)/n]*[(n-2)/n)*...*[(n-333)/n]
x2=[(n-334)/n]*[(n-335)/n)*...*[(n-666)/n]
x3=[(n-667)/n]*[(n-668)/n)*...*[(n-999)/n]
[(n-333)/n]^333<x1<[(n-167)/n]^333  ---  167=(1+333)/2
[(n-666)/n]^333<x2<[(n-500)/n]^333  ---  500=(334+666)/2
[(n-999)/n]^333<x3<[(n-833)/n]^333  ---  833=(667+999)/2
ËùÒÔ
[(n-333)(n-666)(n-999)/(n^3)]^333<x<[(n-167)(n-500)(n-833)/(n^3)]^333
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11Â¥2014-05-28 10:07:22
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annydream

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Ò»¿ÅºËÌÒ: ½ð±Ò+2, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, ËãµÄ²»´í£¡ 2014-05-29 20:01:39
P=1-A(11881376£¬1000)/(11881376^1000)
°´Äã˵µÄË¹ÌØÁÖ¹«Ê½½øÐл¯¼ò£ºn!¡Ö(2*pi*n)^0.5*(n/e)^n
P=1-11881376!/[11880376!*(11881376^1000)]¡Ö1-[(2*pi*11881376)^0.5*(11881376/e)^11881376]/[(2*pi*11880376)^0.5*(11880376/e)^11880376*(11881376^1000)]
ÁîX=[(2*pi*11881376)^0.5*(11881376/e)^11881376]/[(2*pi*11880376)^0.5*(11880376/e)^11880376*(11881376^1000)]=(11881376/11880376)^11880376.5*(1/e)^1000
ÔòÓУºX¡Ö0.9587893841
¡àP¡Ö1-X=0.0412106159
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12Â¥2014-05-28 15:05:18
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ÒýÓûØÌû:
12Â¥: Originally posted by annydream at 2014-05-28 15:05:18
P=1-A(11881376£¬1000)/(11881376^1000)
°´Äã˵µÄË¹ÌØÁÖ¹«Ê½½øÐл¯¼ò£ºn!¡Ö(2*pi*n)^0.5*(n/e)^n
P=1-11881376!/¡Ö1-/
ÁîX=/=(11881376/11880376)^11880376.5*(1/e)^1000
ÔòÓУºX¡Ö0.9587893841
¡àP¡Ö1-X=0.04 ...

ÐÁ¿àÁË£¡ÓÃnÖ¸´ú11881376 ¾Í»áÈÝÒױ༭һЩ¡£ÁíÍ⣬¸ÒÎʸóÏÂÊÇÔõÑùËã³öÀ´XµÄֵĨ£¿ÓõÄÊÇʲô¹¤¾ßÄØ£¿
13Â¥2014-05-28 21:33:08
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annydream

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ÒýÓûØÌû:
13Â¥: Originally posted by Ò»¿ÅºËÌÒ at 2014-05-28 21:33:08
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