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Basic Statistics Formula | The Complete SAT Course - Class 10 PDF Download

Statistics is a branch of mathematics that deals with numbers and analysis of the data. Statistics is the study of the collection, analysis, interpretation, presentation, and organization of data.
In short, Statistics deals with collecting, classifying, arranging, and presenting collected numerical data in simple comprehensible ways. Statistics interprets various results from it and forecast possibilities. There are various basic statistics formulas to help us in dealing with facts, observations, and information which are in the form of numeric data only. With the help of statistics, we are able to find various measures of central tendencies and the deviation of data values from the center. Let us learn the basic statistics formulas along with a few solved examples.

What are the Basic Statistics Formulas?

The important statistics formulas are listed in the chart below:
Basic Statistics Formula | The Complete SAT Course - Class 10

where,

x = Observations given

Basic Statistics Formula | The Complete SAT Course - Class 10= Mean

n = Total number of observations
Basic Statistics Formulas

Basic Statistics Formula | The Complete SAT Course - Class 10

→ x = Observations given
Basic Statistics Formula | The Complete SAT Course - Class 10 = Mean

→ n = Total number of observations

Solved Examples Using Basic Statistics Formula

Example: Age of students = {14, 15, 16, 15, 17, 15, 18} Find the mode.

Since there is only one value repeating itself, it is a unimodal list.
Mode = {15}

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