首页
登录
职称英语
An experiment has three possible outcomes, I, J, and K. The probabilities of the
An experiment has three possible outcomes, I, J, and K. The probabilities of the
游客
2024-01-12
40
管理
问题
An experiment has three possible outcomes, I, J, and K. The probabilities of the outcomes are 0.25, 0.35, and 0.40, respectively . If the experiment is to be performed twice and the successive outcomes are independent, what is the probability that K will not be an outcome either time?
选项
A、0.36
B、0.4
C、0.6
D、0.64
E、0.8
答案
A
解析
一个实验有3个可能的结果:I,J和K。这些结果出现的概率分别是0.25,0.35和0.4,若连续进行该实验两次,并且两次的结果相互独立,问K不是任一次试验结果的概率有多大?
解:本题的正确答案是(A)。K不是第一次试验结果的概率为:1-0.4=0.6;同理K不是第二次试验结果的概率也为0.6,两次试验的结果相互独立,所以K不是任一次试验结果的概率为0.6×0.6=0.36
转载请注明原文地址:https://tihaiku.com/zcyy/3356790.html
相关试题推荐
Science,inpractice,dependsfarlessontheexperimentsitpreparesthano
Experimentshaveshownthatcolors,partlybecauseoftheirpsychologicalassoci
Thedoctortriedtodoanexperimenttofindoutthe______ofthemedicineoneth
Tosucceedinascientificexperiment,______.A、oneneedsbeingpatientpersonB
Iwouldhavetoldhimtheanswerhaditbeenpossible,butI______sobusythen
Aspecialresearchteamfromthelocalmedicalcenter【C1】______experimentso
Aspecialresearchteamfromthelocalmedicalcenter【C1】______experimentso
Aspecialresearchteamfromthelocalmedicalcenter【C1】______experimentso
Aspecialresearchteamfromthelocalmedicalcenter【C1】______experimentso
Aspecialresearchteamfromthelocalmedicalcenter【C1】______experimentso
随机试题
Derek;HaveyouseenthefilmOliverTwist,Kathy?Kathy;Yes,Iwentlastnight
ThereportissuedbytheKaiserFamilyFoundationmainlyshowsthat[br][origi
Readthefollowingpassageandfillineachblankwithoneword.Choosethecorr
下列复句中,分句间存在选择关系的有( )。A.她不是学生,而是老师 B.与其
欲开发一个绘图软件,要求使用不同的绘图程序绘制不同的图形。该绘图软件的扩展性要求
在SNMP协议中,代理收到管理站的一个GET请求后,若不能提供该实例的值
妊娠晚期每周体重增加不应超过A.0.2kg B.0.5kg C.0.8kg
基本养老金支付水平的影响因素是()。 (1)本人指数化月平均缴费工资 (2
气雾剂的特点叙述不正确的是A.奏效迅速,定位作用 B.稳定性好 C.给药剂量
处在海水、海风、氯离子、硫酸根离子环境的或冬季洒除冰盐的路面或桥面钢筋混凝土、钢
最新回复
(
0
)