1 A certain five-menber committee must be assemble from a pool of 5 women--A B C D and E,and 3 men--X Y and Z.What is the probability that the committee will include B C E Y and A 1/30 B 1/25 C 2/25 D 1/15 E 2/322 In a group of 100 students,more stud

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1 A certain five-menber committee must be assemble from a pool of 5 women--A B C D and E,and 3 men--X Y and Z.What is the probability that the committee will include B C E Y and A 1/30 B 1/25 C 2/25 D 1/15 E 2/322 In a group of 100 students,more stud
1 A certain five-menber committee must be assemble from a pool of 5 women--A B C D and E,and 3 men--X Y and Z.What is the probability that the committee will include B C E Y and
A 1/30 B 1/25 C 2/25 D 1/15 E 2/32
2 In a group of 100 students,more students are on the fencing team than are members of the French club.If 70 people are in the club and 20 are neither on the team or the club,what is the minimum number of students who could,be both on the team and in the club?

1 A certain five-menber committee must be assemble from a pool of 5 women--A B C D and E,and 3 men--X Y and Z.What is the probability that the committee will include B C E Y and A 1/30 B 1/25 C 2/25 D 1/15 E 2/322 In a group of 100 students,more stud
A
结果是选了三个女生,两个男生,
五个女生选三个,C(5,3)=10,三个男生选两个C(3,2)=3；同时发生,所以相乘得30
其中一种情况概率1/30
61
100人中有20个两边都不是,所以至少参加一边的有80人
其中有70人确定是club的,那剩下10一定是team的
team那边又得比club多,所以至少得加61个人才能超过70
这61个人是从club那70人里出来的,所以
这61个人就是又在team又在club的最少值

你可以去小马过河问问那里专业的英语老师。。。。

1 A certain five-menber committee must be assemble from a pool of 5 women--A B C D and E,and 3 men--X Y and Z.What is the probability that the committee will include B C E Y and A 1/30 B 1/25 C 2/25 D 1/15 E 2/322 In a group of 100 students,more stud a certain The Story of a Humdred and Five Men and Three Women 是哪部古典名著 IF I add 8 to five times a certain number,the answer is 43.what is the number?中文一定要! 英语阅读1,麻烦大家了.How men first learn to invent words is unknown; in other words,the origin of language is a mystery.All we know is that men,unlike animals,somehow invented certain sounds to express thoughts and feelings,actions and thing just missed a certain date certain a certain什么意思 in a certain way act in a certain in a certain sense 英语翻译No one has trouble to point out____1 woman couse fewer accidents than men do.In America,__2 half the drivers are women,___ 3 are five or six times as ___4 accidents casued by men as woman.1 A what B that C.which2 A where B that C,which3 A 英语翻译1In different countries around the world,people become grown-ups at different ages.Being a grown-up means to have the right to do certain things.Young men and women at this age can get a part-time job and begin to receive an income of the certain certain certain It takes me five hours 提问five hours 怎么说?there are five men doctors 提问five 怎么说 a certain food怎么翻译?（a certain?）求英语完形填空答案~~谢谢英语高手们~Intelligent young people want to go to university, and it is certain for a country to 1 university places for them to ensure that there will be well-trained men and women to 2 the Government and