导读：（1）A committee of 6 teachers is to be formed from 5 male tea （1）A committee of 6 teachers is to be formed from 5 male teachers and 8 female teachers.If the committee is selected at random,wh...
（1）A committee of 6 teachers is to be formed from 5 male tea
（1）A committee of 6 teachers is to be formed from 5 male teachers and 8 female teachers.If the committee is selected at random,what is the probability that it has an equal number of male and female teachers?
（2）It is known that 3 out of 10 television sets are defective.If 2 television sets are selected at random from the 10,what is the probability that 1 of them is defective?
我用的是TI-84 Plus的计算器
最好能用nPr和nCr的符号讲解
娃哈哈o541
1年前他留下的回答
已收到2个回答
pscwwang
网友
该名网友总共回答了15个问题，此问答他的回答如下：采纳率：93.3%
1)Pr=(5C3)(8C3)/(13C6)
(choose 3 from 5 males& 3 from 8 females)/(randomly choose 6 from 13)
2)Pr=(3C1)(7C1)/(10C2)
(choose 1 from the 3 defective tvs and 1from the 7 qualified tvs)/(randomly choose 2 from 10)
work them out with ur calculator :
1年前他留下的回答
7
水真的绿了哦
网友
该名网友总共回答了69个问题，此问答他的回答如下：
(1) There are 13C6 cases for formimg a 6-member committee from 13 candidates. The case number for 3 male and 3 female in it is 5C3*8C3, then P=5C3*9C3/13C6=0.326
(2) If a detective one is selecte...
1年前他留下的回答
2
以上就是小编为大家介绍的（1）A committee of 6 teachers is to be formed from 5 male tea 的全部内容，如果大家还对相关的内容感兴趣，请持续关注上海建站网！
标签：
内容声明：网站所展示的内容均由第三方用户投稿提供，内容的真实性、准确性和合法性均由发布用户负责。上海建站网对此不承担任何相关连带责任。上海建站网遵循相关法律法规严格审核相关关内容，如您发现页面有任何违法或侵权信息，欢迎向网站举报并提供有效线索，我们将认真核查、及时处理。感谢您的参与和支持！
