首页
登录
职称英语
In a probability experiment, G and H are independent events. The probability tha
In a probability experiment, G and H are independent events. The probability tha
游客
2024-01-12
46
管理
问题
In a probability experiment, G and H are independent events. The probability that G will occur is r, and the probability that //will occur is s, where both r and s are greater than 0.
Quantity A: The probability that either G or H will occur, but not both
Quantity B: r+s-rs
选项
A、Quantity A is greater.
B、Quantity B is greater.
C、The two quantities are equal.
D、The relationship cannot be determined from the information given.
答案
B
解析
这道题是一道很简单的集合/概率的题目,解题用到的是交并集公式,P(G∪H)=P(G)+P(H)=P(G∩H)。当然,注意到Quantity A中提到了“but not both”,所以需要在上面这个公式的基础上再减掉一个P(G∩H)。因为P(G∪H)本身指的是“The probability that either G or H will occur (including both)”。所以Quantity A=r+s-rs-rs=r+s-2rs。比较Quantity B,可以得知,Quantity A<Quantity B。
转载请注明原文地址:https://tihaiku.com/zcyy/3355191.html
相关试题推荐
Itwasoncebelievedthatthebrainwasindependentofmetabolicprocesseso
Inanexperiment,volunteerswalkedindividuallythroughadark,abandonedtheat
Humanbeings,bornwithadrivetoexploreandexperiment,thriveonlearning.U
Humanbeings,bornwithadrivetoexploreandexperiment,thriveonlearning.U
Humanbeings,bornwithadrivetoexploreandexperiment,thriveonlearning.U
Scientist:Inanexperiment,dogshadaccesstoahandletheycouldpulltorele
Theoddsthatacertaineventwilloccuristheratiooftheprobabilitythatth
Ifyourollasingle6-sideddie,whatistheprobabilitythatyouwillrollan
IftheprobabilitythatDavewillgotoclassis0.7,whatistheprobabilityth
Ifyourollasingle6-sideddie,whatistheprobabilitythatyouwillrollan
随机试题
BythetimeIfinishedhighschool,myinterestinanimalshadgrown,anden
Noonecandenythatpesticidehaveimprovedtheabilityoffarmerstobrin
某企业本月生产甲、乙两种产品,有关资料如下: (1)甲、乙产品产量、销售单价及
A.|A|^2 B.|A|^n C.|A|^2n D.|A|^2n-1
中央银行确定货币供给统计口径的标准是金融资产的()。A.稳定性 B.收益性
脉络膜血管主要来自什么动脉A.睫状后长动脉 B.前睫状血管系统 C.睫状后短
小红调查完公园的生物种类后,将有关的生物分成了动物、植物和其他生物三类。他所采用
如图,两个同心圆构成的圆环被均匀地分割成7份,连同中间的小圆共8个区域。若要给这
十四椎下旁开3寸的穴位是( ) A.大肠俞 B.胃俞 C.肾俞 D.志
人在每一瞬间,将心理活动选择了某些对象而忽略了另一些对象。这一特点指的是注意的(
最新回复
(
0
)