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
2025-02-23
7
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/3969753.html
相关试题推荐
Foracertainprobabilityexperiment,theprobabilitythateventAwilloccuris
LinandMarkeachattemptindependentlytodecodeamessage.Iftheprobability
LinandMarkeachattemptindependentlytodecodeamessage.Iftheprobability
LinandMarkeachattemptindependentlytodecodeamessage.Iftheprobability
ConsideranexperimentwitheventsA,B,andCforwhichP(A)=0.23,P(B)=0.40,
TheprobabilitydistributionfunctionfofacontinuousrandomvariableXisdef
ConsideranexperimentwitheventsAandB.TheprobabilityofeventAis0.63,
Inaprobabilityexperiment,GandHareindependentevents.Theprobabilitytha
ABCD四个人排成一排QuantityA:theprobabilitythatBwillprecedeCQuantityB:1/2A、Q
QuantityA:TheprobabilitythateventRoccursis0.38theprobabilitythateve
随机试题
WhichofthefollowingsentencesisCORRECT?A、Arthritisisadiseasecausingpai
克罗恩典型表现不包括:A.受累肠段弥漫性充血水肿伴糜烂 B.纵行样溃疡或裂隙
甲状腺大部切除术的手术体位采取A.仰卧位 B.侧卧位 C.俯卧位 D.颈仰
以眩晕欲仆,肢体震颤,步履不稳,舌红,脉弦有力属于A:热极生风证B:血虚生风证
维生素C对尿胆红素测定的影响,正确的说法是A、无影响B、产生假阳性C、产生假
世界政治格局发展的客观趋势是( ) A.单极格局 B.多极化 C.两极格
常用茯苓而不用猪苓治疗的病证是A.水肿 B.小便不利 C.泄泻 D.心悸
某公司两年前购入一批专用材料20万元,目前变现价值15万元,目前打算投资一项目,
关于招标控制价的说法,下列正确的是()。A.国有资金投资的工程建设项目应实行工
骨折患者长期卧床可发生A:脂肪栓塞 B:创伤性关节炎 C:损伤性骨化 D:
最新回复
(
0
)