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# Mean

## Sum of the values divided by the number of values

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Mean

by CK-12 //basic

Covers how to compute the mean or average of a data set.

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• PLIX

## Arithmetic Mean

by CK-12 //basic

Mean Interactive

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• Video

## Finding the Mean of a Set of Numbers - Overview

by CK-12 //basic

Overview

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• Video

## Mean Principles

by CK-12 //basic

This video gives more detail about the mathematical principles presented in Mean.

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• Video

## Mean Examples

by CK-12 //basic

This video shows how to work step-by-step through one or more of the examples in Mean.

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• Video

## Mean, Median, Mode

by CK-12 //basic

Learn about the 3 measures of center and how to use them.

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• Video

## Sample and Population Means

by CK-12 //basic

This video differentiates between population means and sample means.

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• Video

## Finding the Mean of a Set of Numbers - Example 1

by CK-12 //basic

Finding the Mean of a Set of Integers

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• Video

## Finding the Mean of a Set of Numbers - Example 2

by CK-12 //basic

Finding the Mean of a Set of Decimals

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• Video

## Finding the Mean of a Set of Numbers - Example 3

by CK-12 //basic

Finding the Mean of a Set of Fractions

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• Lesson Plan

## The Mean Lesson Plan

by CK-12 //basic

This lesson plan covers The Mean and includes Teaching Tips, Common Errors, Differentiated Instruction, Enrichment, and Problem Solving.

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