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
25
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
Manypresidentsofthecentury-oldNanjingNormalUniversity(NJNU)haveput
关于期货交易与现货交易的联系,下列描述错误的是()。A、现货交易是以期货交易为基础的B、期货交易是以现货交易为基础的C、没有期货交易,现货交易的价格
SSL协议在运行过程中可分为六个阶段:①交换密码阶段、②建立连接阶段、③检验阶段
建筑结构试验按照荷载性质不同,可分为()。A.生产性试验与科研性试验 B
某女青年,尿频、尿急、尿痛反复发作3年,一般抗生素治疗无效,目前每次尿量仅45毫
一系列“三农”政策的出台,犹如辞旧迎新的元旦钟声,给寂静的田野带去了春的气息,给
某驾校甲、乙、丙三位学员在科目二考试中能通过的概率分别为,那么,这三位学员中恰好
投保人以一个保险标的同时向两家或两家以上的保险公司投保同一风险,保险金额总和(
桥梁伸缩装置按传力方式和构造特点可分( )。A.搭接式 B.对接式 C.钢
质量保证体系必须有明确的质量目标,确定质量目标的基本依据是()。A.质量手册
最新回复
(
0
)