首页
登录
职称英语
Suppose that there is a 6-sided die that is weighted in such a way that each tim
Suppose that there is a 6-sided die that is weighted in such a way that each tim
游客
2024-01-12
63
管理
问题
Suppose that there is a 6-sided die that is weighted in such a way that each time the die is rolled, the probabilities of rolling any of the numbers from 1 to 5 are all equal, but the probability of rolling a 6 is twice the probability of rolling a 1. When you roll the die once, the 6 outcomes are not equally likely. What are the probabilities of the 6 outcomes?
选项
答案
2/7
解析
Using the notation P(l)for the probability of rolling a 1, let p = P(l). Then each of the probabilities of rolling a 2, 3, 4, or 5 is equal to p, and the probability of rolling a 6 is 2p. Therefore, since the sum of the probabilities of all possible outcomes is 1, it follows that
1 = P(l)+ P(2)+ P(3)+ P(4)+ P(5)+ P(6)=p +p +p+p+p + 2p
= 7p
So the probability of rolling each of the numbers from 1 to 5 is p =1/7, and the probability of rolling a 6 is 2/7.
转载请注明原文地址:https://tihaiku.com/zcyy/3355386.html
相关试题推荐
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
Whenyourchildissupposedtobedoinghomework,aretheychattingwiththe
随机试题
NarratorListentopartofatalkinananthropologyclass.Nowge
MEMORANDUMTO:Mr.S.WilsonDATE:1
在中国,食物是用大的公用盘子(communalplate)来盛装的,而且基本上都会提供公用的筷子来将食物从公用的盘子里弄到你自己的盘子里。如果有公用的
构成韵头的元音可以是ɑ、o、e,也可以是i、u、ü。()
CCTV系统质量测评的基本方法有主观质量评价和客观质量指标测试两种,两者之间没有
呼吸器引起肺损伤的主要因素是A.肺呼气末容量 B.肺内分流 C.肺功能残气量
对于所有者权益类账户而言,( )。A.增加额记入借方 B.增加额记入贷方 C
A.大量中性粒细胞 B.大量T淋巴细胞浸润 C.大量B淋巴细胞浸润 D.破
某公司拟进行股票投资,计划购买ABC三种股票,并设计了甲乙两种投资组合,ABC三
飞扬悬浮于空气中的可燃粉尘引起的爆炸属于()。A.物理爆炸 B.化学爆炸 C
最新回复
(
0
)