Q1:the mean of the probability distribution of the sample mean is A) A static B) a random variable C) a parameter D) always equal to sample meanQ2:A sampling distribution is defined as the probability distributionA) of possible sample sizes that can be observed from a given populationB) ...
题目 X is a continuous random variable which can take any value between 0 and 1. The probability distribution is shown by the straight line graph.Write down P(0≤q X≤q 1). 相关知识点: 试题来源: 解析 1 反馈 收藏
aThe probability distribution of a discrete random variable is a table, graph, or formula that gives the probability associated with each possible value that the variable can assume 一个分离随机变量的概率分布是给可能性与每可能的价值相关可变物可能假设的桌、图表或者惯例 [translate] ...
A. The average value B. The spread of the data C. The most common value D. The total number of outcomes 相关知识点: 试题来源: 解析 B。解析:方差衡量的是数据的离散程度,即数据的分布情况。选项 A 平均价值由期望衡量;选项 C 最常见的值是众数;选项 D 总结果数与方差无关。反馈...
P(X=r)=kr for r=1,2,3,4P(X=r)=0 otherwise.Two successive values of X are generated independently of each other. Find the probability that the total of the two values of X is greater than 6. 相关知识点: 试题来源: 解析 0.4 反馈 收藏 ...
The Poisson distribution is a probability distribution for an event occurring x times over a given interval. The interval is usually a time interval, such as the number of people entering a store during one hour. The distribution is a discrete distribution, so x must be a whole number. The...
The expected value of the a probability distribution A. Is the same as the random variable. B. Is another term for the mean. C. Is also called the variance. D. Cannot be greater than 1. 相关知识点: 试题来源: 解析 B 反馈 收藏 ...
probability distribution (redirected fromDistribution (probability)) Financial Encyclopedia n.Statistics A function giving the theoretical probability of observing a random variable to have a particular value when the variable is discrete or to fall within a certain range when the variable is continuous....
Suppose that X is normally distributed with a mean of 100 and a standard deviation of 29. What is the probability that X is greater than 153.947? Normal Probability Distribution: The normal probability distribution is a continuou...
aThe normal distribution is a continuous probability distribution that often gives a good description of data that cluster around the mean 正常分配是经常给数据一个好描述在手段附近成群的一块连续的概率分布 [translate] 英语翻译 日语翻译 韩语翻译 德语翻译 法语翻译 俄语翻译 阿拉伯语翻译 西班牙语翻译 ...