How to Calculate the Mean of a Set of Numbers | Minute Math

In this video we learn how to Calculate the mean of a set of numbers. We find the mean of the numbers 8, 12, 15, 9, and 6.

The steps to find the mean of a set of numbers is:
1) Write the formula for the mean
mean=(sum of values in a data set)/n
2) Find the sum of all the values in the set. Write the sum in the numerator.
3) Count the number, 𝑛,n, of values in the set. Write this number in the denominator.
4) Simplify the fraction.
5) Check to see that the mean is reasonable. It should be greater than the least number and less than the greatest number in the set.

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Here is the link to our website which covers this topic more in depth:
https://minutemath.com/pre-algebra/averages-and-probability/

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Revision and Adaptation. Provided by: Minute Math. License: CC BY 4.0
CC Licensed Content, Shared Previously

Marecek, L., Anthony-Smith, M., & Mathis, A. H. (2020). Use the Language of Algebra. In Prealgebra 2e. OpenStax. https://openstax.org/books/prealgebra-2e/pages/5-5-averages-and-probability. License: CC BY 4.0. Access for free at https://openstax.org/books/prealgebra-2e/pages/1-introduction