If a random sample of 36 is taken from the population, what is the probability that the mean of the sample would be more than 3.5 years?--如果从该总体中随机抽取36个样本,样本的均值超过3.5年的概率是多少? 题干中给出了总体的两个参数,均值X=2.5,标准差σ=3。 从总体中抽取36个样本,而且问的...
平均分配
What is probability? Physicists, mathematicians, and philosophers have been engaged with this question since well before the rise of modern physics. But in quantum mechanics, where probabilities are associated only with measurements, the question strikes to the heart of other foundational problems: wha...
What is the probability that the product of the two numbers is a multiple of5?( ). A. 1/(36) B. 1/(18) C. 1/6 D. (11)/(36) E. 1/3 相关知识点: 试题来源: 解析 D 扔两个骰子.这两个数的乘积是5的倍数的概率是多少? 这相当于要求至少一个的概率的数字是5的倍数,因为如果一...
百度试题 结果1 题目 2. The probability of a train being late is 0.2.What is the probability of it not being late? 相关知识点: 试题来源: 解析 0.8 反馈 收藏
What is probability? Physicists, mathematicians, and philosophers have been engaged with this question since well before the rise of modern physics. But in quantum mechanics, where probabilities are associated only with measurements, the question strikes to the heart of other foundational problems: ...
what is the probability that a prime number is less than 7,given that it is less than 13.我的理解是在小于13的数中小于7且为素数的几率有多大 答案是1/2 相关知识点: 试题来源: 解析 素数有2,3,5,7,11,13 小于7的有3个,一共6个,答案就是二分之一啊...
What is the probability that an integer in the set {1,2,3,…,100} is divisible by 2 and not divisible by 3?( )A.16B.33100C.1750D.12E.1825 答案 C相关推荐 1What is the probability that an integer in the set {1,2,3,…,100} is divisible by 2 and not divisible by 3?( )A...
一种疫苗的有效率是95%， 那么它没有效的可能性是：a) 20个人中只有一个人？b) 20个人中多过一个人？答案应该是a, 因为对5%的人可能无效
11.What is the probability when a number formed by at least one 6 on all digits is selected from 1 to 1,000 (inclusive)? A261/1000 B270/1000 C271/1000 D729/1000 E730/1000 显示答案 登录后才可以添加做题笔记哦,还没有账号? 马上注册 KMF 解析 网友解析 题目数据 收起 暂无解析...