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所在平台: Udemy |
课程主页: https://www.udemy.com/course/statistical-average/
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这是一门关于“统计平均数”（Statistical Average）的课程，也称为“集中趋势度量”（Measure of central tendency）。课程将介绍统计平均数的对象、功能以及各种类型。 **课程内容涵盖：** * **统计平均数的种类：** * **数学平均数：** 包括算术平均数（Mean/arithmetic mean）、几何平均数（Geometric mean）、调和平均数（Harmonic mean）和平方平均数（Quadratic mean）。 * **位置平均数：** 包括中位数（Median）和众数（Mode）。 * **商业平均数：** 包括移动平均数（Moving average）、渐进平均数（Progressive average）和综合平均数（Composite average）。 * **统计数列的类型：** * **个体数列（Individual series）：** 每个数值或项目独立呈现，未分组。 * **离散数列（Discrete series）：** 数值与对应的频数（Frequency）分别列出。 * **连续数列（Continuous series）：** 数据以组距（Class interval）的形式呈现。 * **各种统计平均数的计算方法：** * **平均数（算术平均数）：** 详细讲解其含义以及在个体数列、离散数列和连续数列中的计算方法，并提供例题。 * **中位数：** 讲解其含义以及在不同数列类型中的计算方法，并提供例题。 * **众数：** 讲解其含义以及在不同数列类型中的计算方法，并提供例题。 * **分组值（Partition Values）：** * **四分位数（Quartile）：** 讲解其在个体数列、离散数列和连续数列中的计算方法。 * **十分位数（Decile）：** 讲解其在个体数列、离散数列和连续数列中的计算方法。 * **百分位数（Percentile）：** 讲解其在个体数列、离散数列和连续数列中的计算方法。 本课程将深入浅出地讲解统计平均数的概念、分类和计算技巧。
Statistical average or Measure of central tendencyObjects and Functions of StatisticalKinds of statistical average Average(A) Mathematical Average:1. Mean/ arithmetic mean 2. Geometric mean 3. Harmonic mean 4. Quadratic mean(B) Average of position:1. Median 2. Mode(C) Commercial Average: 1. Moving average 2. Progressive average 3. Composite averageStatistical Series 1. Individual series: Under this category, every item or values are personally shown differently. Under this category and groups of items and values are not made. Values are presented in accordance to the number of items.2. Discrete series: When there are more classes in an investigation and their values are confirm then individual value (items) which are different from each other and are complete, are written and their frequencies are written in their front. There are two columns, in one column value of items and other column, frequency of each item is written.3. Continuous series: When data's are presented on the basis of class intervals, then this series is called continuous series.MEAN or Arithmetic Mean or Average: Meaning of MeanMethods of calculation of mean in various seriesIndividual Series QuestionDiscreate Series QuestionContinuous Series QuestionMEDIAN: Meaning of MedianMethods of calculation of Median in various seriesIndividual Series QuestionDiscreate Series QuestionContinuous Series QuestionMODE: Meaning of ModeMethods of calculation of Mode in various seriesIndividual Series QuestionDiscreate Series QuestionContinuous Series QuestionPartition ValuesQuartile:Calculation of Quartile in individual seriesCalculation of quartile in discrete seriesCalculation of Quartile in Continuous seriesDecile:Calculation of Decile in individual seriesCalculation of Decile in discrete seriesCalculation of Decile in Continuous seriesPercentile:Calculation of Percentile in individual seriesCalculation of Percentile in discrete seriesCalculation of Percentile in Continuous series
