Improving methods to calculate estimator minimum variance of the finitepopulationmean; 总体均值估计量最小方差的改进 2. Realizing the Test of Bartlett Homogeneity of Variance for N Population Variance in Excel; 在EXCEL中实现多总体方差的Bartlett齐性检验 ...
mean(redirected from Population mean)Also found in: Thesaurus, Medical, Legal, Financial, Encyclopedia. mean intend: What do you mean?; signify, indicate, imply; malicious: a mean bully Not to be confused with: mien –a person’s look or bearing: a woman of regal mien Abused, Confused...
The population variance formula measures the average squared distances of data points from the population mean. To calculate it, one can subtract the mean from each data point, square the result, sum all the squared values, and divide by the total number of observations in the population. Popu...
this value to represent something about a larger population of parts. The population mean μ cannot be known with certainty, but the sample mean, 56, is our best estimate of the population mean, based only on these five parts. The number 56 is a point estimate of the population mean....
The VAR.P Function is based on the formula: Where σ2is the population variance; ∑ is a Greek letter called sigma which represents ‘sum’; xirepresents each data point; is the mean (average) of the dataset; and N is the population size (the number of data points in the population)...
Standard deviationis a measure of the spread of a data distribution. It measures the average distance of each data point from the mean of the dataset. In Excel, there are two functions used to calculate the standard deviation of a data set. The formula you use to calculate the standard dev...
For example, consider the SAT. It is possible to calculate, each year, the mean or median score on the SAT for each section, and when studying the median mathematics SAT score, the population consists of all SAT takers. To study a population directly, no individ...
For communities, this could mean: Potential influx of climate migrants from harder-hit areas Increased pressure on local resources, especially water and food More frequent and severe extreme weather events Changes in local agricultural productivity Against this backdrop, continued population growth would ...
Improving methods to calculate estimator minimum variance of the finitepopulationmean; 总体均值估计量最小方差的改进 2. Realizing the Test of Bartlett Homogeneity of Variance for N Population Variance in Excel; 在EXCEL中实现多总体方差的Bartlett齐性检验 ...
The results were robust toward sampling error, as they remained nearly unchanged when the study sample was varied (bootstrapping and 80% random subset selection, each done 1,000 times): the mean BCDR was 17.6% (5.7%, 30.8%) for bootstrapping and 17.4% (11.4%, 23.8%) for the subset ...