6066中3个6表示的26个字母大小写

一袋中装有6个同样大小的黑球,编号为1,2,3,4,5,6.现从中随机地取出3个,用X表示取出的球的最大号码,则{X=6}表示的试验结果是________.
_百度作业帮
一袋中装有6个同样大小的黑球,编号为1,2,3,4,5,6.现从中随机地取出3个,用X表示取出的球的最大号码,则{X=6}表示的试验结果是________.
一袋中装有6个同样大小的黑球,编号为1,2,3,4,5,6.现从中随机地取出3个,用X表示取出的球的最大号码,则{X=6}表示的试验结果是________.
从6个球中取出3个,其中一个是6号球,其余的2个是1,2,3,4,5号球中的任意两个.
X=6表示取出的3个球的最大号码是6,其余的是1,2,3,4,5号球中的任意两个.个袋中有6个同样大小的黑球,编好为1,2,3,4,5,6,现从中随机取出3个球,以X表示取出球的最大号码,求X的概率分布列
_百度作业帮
个袋中有6个同样大小的黑球,编好为1,2,3,4,5,6,现从中随机取出3个球,以X表示取出球的最大号码,求X的概率分布列
个袋中有6个同样大小的黑球,编好为1,2,3,4,5,6,现从中随机取出3个球,以X表示取出球的最大号码,求X的概率分布列袋中装有大小相同的球共6个,其中红球3个,白球2个,黑球1个.( I)若每次摸出一球,记下颜色后放回,连_百度知道
袋中装有大小相同的球共6个,其中红球3个,白球2个,黑球1个.( I)若每次摸出一球,记下颜色后放回,连
袋中装有大小相同的球共6个,其中红球3个,白球2个,黑球1个.( I)若每次摸出一球,记下颜色后放回,连续摸三次,设摸得红球的次数为X,写出X的概率分布列并求其数学期望;( II)现从袋中一次摸出3球,在摸得红球的条件下,求摸出的球中有白球的概率.
提问者采纳
(I)由题意,X的可能取值为0,1,2,3,摸到红球的概率为,则P(X=0)=3=,P(X=1)=2=,P(X=2)=2?12=,P(X=3)=∴X的概率分布列为
&X 0 1& 2& 3&
P & & & &∴EX=0×+1×+2×+3×=;(II)从袋中一次摸出3球,在摸得红球的条件下,摸出的球中有白球的概率为=.
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出门在外也不愁& 3-n-Butylphthalide, NBP,, -6 ((R)-isomer),
3-n-Butylphthalide, NBP,, -6 ((R)-isomer),
摘 要:3-n-Butylphthalide, NBP,, -6 ((R)-isomer),
((S)-isomer),C12-H14-O2,(?-3-Butyl-2-benzofuran-1(3H)- (?-3-Butyl-1(3H)-isobenzofuranone
【药物名称】3-n-Butylphthalide, NBP
【化学名】(?-3-Butyl-2-benzofuran-1(3H)- (?-3-Butyl-1(3H)-isobenzofuranone
【CAS登记号】, -6 ((R)-isomer),
((S)-isomer)
【结构式】
【分子式】C12-H14-O2
【分子量】190.2406
【原研厂家】Chinese Academy of Medical Sciences (Originator), Institute of Materia Medica (Originator)
【作用类别】Cerebrovascular Diseases, Treatment of, NEUROLOGIC DRUGS, Stroke, Treatment of
【研发状态】Phase II
【合成情况】 
〖来源〗Drugs Fut
〖合成路线〗
〖标题〗3-n-Butylphthalide
〖合成方法〗Ftalic anhydride (I) id treated with butyric anhydride (II) and sodium butyrate to obtain lactone (IV), which is hydrogenated to target compound by means H2 Nickel Raney.
〖作者〗Wang, X.-W.
〖参考〗Wang, X.-W.; 3-n-Butylphthalide. Drugs Fut , 16
〖出处〗Drugs Fut):16
〖备注〗Source and Chemistry of 284092:
l-NBP was isolated from several plants including Apium graveolens, Angelica amtiloba, Ligusticum sinensis and Ligusticum wallichii (1, 2). Because of the low stability of the chemical structure of l-NBP, dl-NBP was designed and synthesized (Scheme a).
Institute of Materia Medica, Chinese Academy of Medical Sciences (CN).
References
1. Yang, J.S., Chen, Y.W. Isolation and determination of active components of Apium graveolens. Chin Pharm Bull 0-1.
2. Fang, H.J., Yang, J.S., Hu, Q., Chen, Y.W., Sun, S.W. Studies on chemical constituents of volatile oil from Apium graveolens seeds. Chin Drug Analyt J 5-8.
〖来源〗Chin Pharm Bull
〖合成路线〗
〖标题〗Isolation and determination of active components of Apium graveolens
〖合成方法〗Ftalic anhydride (I) id treated with butyric anhydride (II) and sodium butyrate to obtain lactone (IV), which is hydrogenated to target compound by means H2 Nickel Raney.
〖作者〗Chen, Y.W.; Yang, J.S.
〖参考〗Chen, Y.W.; Yang, J.S.; Isolation and determination of active components of Apium graveolens. Chin Pharm Bull 0
〖出处〗Chin Pharm Bull1984,19,():670
〖来源〗Chin Drug Analyt J
〖合成路线〗
〖标题〗Studies on chemical constituents of volatile oil from Apium graveolens seeds
〖合成方法〗Ftalic anhydride (I) id treated with butyric anhydride (II) and sodium butyrate to obtain lactone (IV), which is hydrogenated to target compound by means H2 Nickel Raney.
〖作者〗Fang, H.J.; Chen, Y.W.; Sun, S.W.; Hu, Q.; Yang, J.S.
〖参考〗Fang, H.J.; Chen, Y.W.; Sun, S.W.; Hu, Q.; Yang, J.S.; Studies on chemical constituents of volatile oil from Apium graveolens seeds. Chin Drug Analyt J 5
〖出处〗Chin Drug Analyt J1984,4,():205
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