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
2024-01-12
48
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/3356893.html
相关试题推荐
Ourpreferencesforcertaincolorsare______accordingtothepassage.[br]Whi
Ourpreferencesforcertaincolorsare______accordingtothepassage.[br]Whi
Ourpreferencesforcertaincolorsare______accordingtothepassage.[br]Whi
Ourpreferencesforcertaincolorsare______accordingtothepassage.[br]If
Inasecond-handbookshop,Billycameacrossabookwhichhethoughtwascertain
WhentheUnitedStatesCongresscreatedYellowstoneNationalParkin1872,th
WhentheUnitedStatesCongresscreatedYellowstoneNationalParkin1872,th
Ofcourseacertainamountofdependenceonothersisnotonlygood,butneces
WhentheUnitedStatesCongresscreatedYellowstoneNationalParkin187
WhentheUnitedStatesCongresscreatedYellowstoneNationalParkin187
随机试题
BonAppetiteA)Wealllovethefoodwegrowupo
[originaltext]Anearthquakemeasuring6.7ontheRichterscalehashitnort
Ihavenottheleast______ofhurtingyourfeelings.A、purposeB、conceptC、mindD
[originaltext]W:Hey,Tom,where’veyoubeenlately?M:Oh,I’vebeendoi
WinstonChurchillfirmly______hisannouncedaimofwinningthewar.A、adheredto
[originaltext]W:Ihearyou’vegotanewjob.Doyoulikeit?M:Sure,thesal
关于安全教育和培训的要求,错误的是( )。A.安全教育和培训应贯穿施工过程全过
根据资产配置的不同,混合基金可分为()。A:偏股型基金B:偏债型基金C:股债
下列关于宏观经济发展目标及其衡量指标的表述,错误的是()A、衡量物价稳定的宏观
风险等级中不希望有的风险等级是()。A.VL B.L C.M D.H
最新回复
(
0
)