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# What is the purpose of statistics?

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The purpose of statistics is to allow sets of data to be compared so that analysts can look for meaningful trends and changes. Analysts review the data so that they can reach conclusions regarding its meaning. Statistics allow people to see how things are or are not correlated and how a change in one variable might affect another.

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Credit: NYC Media Lab CC-BY-SA 2.0

Statistics are used by marketing firms, companies that delve in the financial world, researchers, manufacturing organizations and government groups. Without statistics, the numerical information collected is useless. A goal of statistics is to find meaning in the provided data and determine what variations are meaningful and which ones occur merely by chance.

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## Related Questions

• A:

Statistics are a methodology necessary in the field of statistics and are used to collect, analyze and evaluate data. Economics depends heavily on the use of statistics.

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Descriptive statistics are statistics that describe the central tendency of the data, such as mean, median and mode averages. Variance in data, also known as a dispersion of the set of values, is another example of a descriptive statistics. Greater variance occurs when scores are more spread out from the mean. Descriptive statistics summarize data.

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The box-and-whisker plot is a technique in statistics that graphically shows the distribution of a set of data involving the minimum and maximum values, as well as the first, second and third quartiles. The plot is typically drawn using a number line.