a filtered probability

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• a filtered probability
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• 名词+of doing; 名词+to do 倒底什么样的名词要of doing或to do 以下是我找到的"不同的名词,对这两种后置定语的选择是有区别的,有的只能用to do,有的只可用of doing,的两种都可以.现分述如下：⑴will,willingness,suggestion,conclusion,decision,permission,agreement,refusal,determination,proposal,resolution等,一般用不定式作后置定语.如：Mary has the will to win the first prize.(不用of winning)玛丽有获得一等奖的决心.He has drawn a conclusion to go abroad with his family.(不用of winning)他已作出了携家去国外的决定.⑵hope,risk,possibility,impossibility,probability,intention,pros
• 英语翻译A bag contains 6 chips,numbered 1 through 6,If 2 chips are chosen at random without replacement and the values on those 2 chips are multiplied,what is the probability that this product will be greater than 20?（A）1/30 （B）1/15 (C)2/15 (D) 1/5 (E)13/15
• What is the lowest z-value for the highest 2% of observations on the standard normal distribution?a.-2.0537b.-0.8416c.0.8416d.2.0537The daily sales of a retail store are normally distributed with a standard deviation of $500.If the probability that sales will be less than $10,000 in any one day is 40%,what are the mean daily sales?a.$9,873.35b.$10,126.65 c.$12,533.65d.None of the above
• 不用写出过程,只要写一下每一题的答案和大概怎么做的就行了,感激不尽10.A box contains 6 white marbles,7 red marbles,and 8 blue marbles.(a) If you choose 3 marbles at random from the box,what is the probability that they areall the same color?(b) Suppose instead you choose the 3 marbles one at a time,and each time you choosea marble,you return it to the box before drawing the next marble.What is theprobability that all three marbles are the same color?11.If you are dealt 5 cards from a
• .52张梭哈一对的概率为什么这样计算?The number of such hands is (13-choose-1)*(4-choose-2)*(12-choose-3)*[(4-choose-1)]^3.If all hands are equally likely,the probability of a single pair is obtained by dividing by (52-choose-5).This probability is 0.422569.即 13c1 * 4c2 * 12c3 * 4e3 / 52c5 = 0.422569 c:组合 恕小生愚钝
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