
What is STATISTICS?
Four basic terms in statistics
A population is the entire group of individuals you want to study, and a sample is a subset of that group.
A parameter is a quantitative characteristic of the population that you're interested in estimating or testing (such as a population mean or proportion).
A statistic is a quantitative characteristic of a sample that often helps estimate or test the population parameter (such as a sample mean or proportion).
What is descriptive statistics?
Descriptive statistics are single results you get when you analyze a set of data — for example, the sample mean, median, standard deviation, correlation, regression line, margin of error, and test statistic.
What is statistical inference
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What is STATISTICS?
Four basic terms in statistics
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