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# What are the two major types of statistics?

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The two major types of statistics are descriptive statistics and inferential statistics. Each of these statistical segments serves specific purposes, and they are used to accomplish different objectives.

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Credit: Open Data Institute CC-BY-SA 2.0

Descriptive statistics is used to describe and summarize data. Numerical measures such as average, standard deviation and correlation are used to describe the features of a set of data. Inferential statistics studies a statistical sample and, through analysis, is able to say something about the population from which the sample came. Because it is difficult to examine each member of the population individually, a representative sample is used to make estimations, correlations and predictions using the data.

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## Related Questions

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Statisticians use inferential statistics to reach conclusions that extend beyond the specific data studied, such as when using sample data to determine how a larger population might behave or respond to a specific stimulus. Inferential statistics can also compare the average performance between two groups, often through a device called the t-test.

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A binomial experiment is a type of probability distribution in statistics that defines the probability of only two possible outcomes. This experiment involves a specific number of independent trials that lead to exclusively dichotomous alternatives.

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In mathematics, particularly in the field of statistics, the mode is the value that occurs most often in a series of numbers. It is also referred to as the modal value. If a set of data values does not have a repeating number, then it has no mode.