Mathematicians have divided the statistics as the science into major big 2 branch together is สถิติเชิง descriptive and statistical inference. Inferential statistics, which each branch are as follows.1. Descriptive statistics refers to describe data. Data collected from the sample population or interest, which may be shown in the figure, the average, median, mode, percentage standard deviation. Variance, etc.2. Inferential statistical analysis means that data collected from the sample. In order to explain the conclusion of some characteristics of the population. The application of probability theory, statistical branch, including estimation of statistics, hypothesis test statistics. Regression and correlation analysis.
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