首页
登录
职称英语
Nine pieces of paper numbered consecutively from 1 to 9 are put into a hat. If o
Nine pieces of paper numbered consecutively from 1 to 9 are put into a hat. If o
游客
2025-02-24
22
管理
问题
Nine pieces of paper numbered consecutively from 1 to 9 are put into a hat. If one piece of paper is drawn at random from the hat, what is the probability that it will have an even number?
选项
A、1/9
B、2/9
C、4/9
D、1/2
E、5/9
答案
C
解析
把标号为1至9的9片纸放入一个帽子中,若从帽子中随机地抽出1片纸,它是偶数的概率为多少?
解:本题的正确答案是(C)。1至9中偶数有2、4、6和8共四个,那么随机抽出1张纸其标号为偶数的概率为4/9。
转载请注明原文地址:https://tihaiku.com/zcyy/3971255.html
相关试题推荐
Onahighwaythereisanelectricpoleevery96feet.Ifthepolesarenumbered
Ninepiecesofpapernumberedconsecutivelyfrom1to9areputintoahat.Ifo
Arope55feetlongiscutintotwopieces.Ifonepieceis23feetlongerthan
Onaroadthereisatreeevery46meters.Ifthetreesarenumberedconsecutive
Arope60meterslongiscutintothreepieces(A,B,C),IfpieceAis12meter
Rollinganumbercubewithfacesnumbered1to6(similartoa6-sideddie)isa
COALESCE:A、multiplyswiftlyB、heatrapidlyC、divideintopiecesD、exposeE、satur
TheHomesteadActof1862hasbeencalledoneofthemostimportantpiecesofle
Amongthemany(i)____oftheproject,expensecannotbenumbered;thegoalsof
Althoughhisoutnumberedtroopsfoughtbravely,thegeneralfelthehadnochoic
随机试题
Somecompanieshaveintroducedflexibleworkingtimewithlessemphasisonpress
Inrecentdecadeschildspecialistshavetriedmoreandmoretohelpparent
Lawyersarelessthan1%ofAmericanadults,(1)_____theyarewell-represen
AccordingtothemostrecentAmericanFreshmansurvey,conductedannuallyby
Oldstereotypesdiehard.Pictureavideo-gameplayerandyouwilllikelyim
[originaltext]About25millionchildrenindevelopingcountrieshavenoho
为促使凝集现象出现可采取的措施是A.减少电解质或蛋白质来降低溶液中离子强度 B
贫血患者,外周血片示红细胞大小不等,中央淡染区扩大,转铁蛋白饱和度14%。最可能
2020年,全国软件和信息技术服务业(即软件业)企业超4万家,累计完成软件业务收
关于产品生命周期各阶段营销重点的说法,正确的有()A.产品介绍期的营销重点是快速
最新回复
(
0
)