mean v.[T] 1.(词语等)表示...的意思,作...解释 2. 意指,意谓 3. 意味着,即是 4. 意欲,打算;怀有 5. 预定;注定;指定 6. 引起,造成 v.[I] 1. 怀 distribution n. 1.分发,分配 2.散布,分布 3.分配;分布 4.(商品)运销,经销,分销 5.按比例分配;分配法;分发方式 6.分配物,配给物;分...
A sampling distribution tells us which outcomes we should expect for some sample statistic (mean, standard deviation, correlation or other).
proportion=比例 sampling distribution of the sample mean 样本均值抽样分布 样本均值的抽样分布即所有样本均值的可能取值形成的概率分布。例如，某高校大一年级参加英语四级考试的人数为6000人，为了研究这6000人的平均考分，欲从中随机抽取500人组成样本进行观察。若逐一抽取全部可能样本，并计算出每个样本的...
Distribution of all possible sample means of a given sample size 用样本估计总体是有难度的,即使样本数非常少(population为1000samples为50)Introducing the sampling distribution of the sample mean with an example that isboth realistic and concrete is diffificult because even for moderately large population...
For starters, I want you to fully understand the concept of a sampling distribution. So, here’s a simple example! Imagine you draw arandom sampleof 10 apples. Then you calculate the mean of that sample as 103 grams. That’s one sample mean from one sample. However, you realize that ...
Sampling Distributions
example: 统计每户房子占有人数:可知该变量属于右偏分布: household size is far from being normally distributed; it is right skewed. Nonetheless, according to the central limit theorem, the samplingdistribution of the sample mean can be approximated by a normal distribution whenthe sample size is relat...
Distribution http://faculty.valenciacc.edu/ashaw/ Clicklinktodownloadothermodules. Thisisadotplotforthesamplingdistributionofthesample meanforsamplesofsize2inthepreviousexample.The dotplotshowsthat3outof10sampleshavemeanswithin 1inchofthepopulationmeanof80inches. ...
网络均值分布 网络释义 1. 均值分布 所谓的均值分布(Sampling distribution of mean)﹐乃抽样平均值的分布。例如我们以100个编号1-100的圆球﹐每次抽样取出五 … xstatistics.blogspot.com|基于2个网页
AP统计学中的两个公式问题在Princeton的书中有一个Sampling Distribution of a Sample Proportion和Sampling Distribution of a Sample Mean,他们的方差公式是不一样的.这两个有什么区别吗?为什么他们的方差公式不