首页
登录
职称英语
A certain jar contains 100 jelly beans: 50 white, 30 green, 10 yellow, 5 red, 4
A certain jar contains 100 jelly beans: 50 white, 30 green, 10 yellow, 5 red, 4
游客
2025-02-24
55
管理
问题
A certain jar contains 100 jelly beans: 50 white, 30 green, 10 yellow, 5 red, 4 purple, and 1 black. If a jelly bean is to be chosen at random, what is the probability that the jelly bean will be neither purple nor red?
选项
A、0.09
B、0.11
C、0.55
D、0.91
E、0.96
答案
D
解析
一个罐子中装有100粒果冻豆:50粒白的,30粒绿的,10粒黄的,5粒红的,4粒紫的,l粒黑的。若从中随机挑出一粒果冻豆,问该粒果冻豆既不是紫色,又不是红色的概率是多大?
解:本题的正确答案是(D)。因为红色有5粒,紫色有4粒,且挑出任一粒的概率相同,所以随机挑出的果冻豆既不是红色又不是紫色的概率为:(100-9)/100=0.91
转载请注明原文地址:https://www.tihaiku.com/zcyy/3971455.html
相关试题推荐
The10householdsonacertainstreethavehouseholdincomesthatrangefrom$34
Thebuyerofacertainmechanicaltoymustchoose2of4optionalmotionsand4
Sixty-eightpeoplearesittingin20carsandeachcarcontainsatmost4people
Aresearchscientistwantstostudyacertainattributeofdogs.Itisestimated
Acertainmoneymarketaccountthathadabalanceof$48,000duringalloflast
Acertainrectanglehasperimeter54.Iftheratioofthelengthoftherectangl
Thescoresreportedforacertainmultiple-choicetestwerederivedbysubtracti
Whenacertainnumberisdividedby7,theremainderis0.Iftheremainderisn
Theoddsthatacertaineventwilloccuristheratiooftheprobabilitythatth
Whatisthecost,incents,ofusingacertainfaxmachinetosendnpagesofa
随机试题
Ofallthegoalsoftheeducationreformmovement,noneismoredifficultth
A、Inthelate1990s.B、Inthelate1980s.C、Intheearly1980s.D、Intheearly1
[originaltext]W:Haveyounoticedadvertisementsrecently?M:Notyet.Isanyt
Thesecretofthesuccessfulhandshakeisnosecretanymore.Managementcons
Thenewlibraryisequippedwithvariousprotections______fire.A、forB、ofC、unde
某建设项目有四个方案,甲功能评价总分为12.0,成本系数为0.22;乙功能评价总
在进行“二氧化碳的密度比空气的大”这一知识点教学时,适宜的教学原则是()。A
血氧饱和度主要取决于A:血氧含量B:PCO2C:Hb水平D:PO2E:血
根据劳动合同法律制度的规定,下列关于经济补偿金和违约金的表述中,不正确的是(
A.三磷酸腺苷 B.西地兰 C.普罗帕酮 D.阿托品 E.异丙肾上腺素频
最新回复
(
0
)