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# Standard Deviation of a Data Set

## Percentages and the square root of the variance

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.

## Standard Deviation of a Data Set

by CK-12 //basic

Covers standard deviation.

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## Standard Deviation of Normally Distributed Data Principles

by CK-12 //basic

This video gives more detail about the mathematical principles presented in Standard Deviation of Normally Distributed Data.

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• Video

## Standard Deviation of Normally Distributed Data Examples

by CK-12 //basic

This video shows how to work step-by-step through one or more of the examples in Standard Deviation of Normally Distributed Data.

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• Video

## Standard Deviation

by CK-12 //basic

Examines the statistical concept of standard deviation, which is used to characterize the spread of a distribution. The video also differentiates between sample standard deviations and population standard deviations and introduces the formulas.

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• Lesson Plan

## Calculating the Standard Deviation Lesson Plan

by CK-12 //basic

This lesson plan covers Calculating the Standard Deviation and includes Teaching Tips, Common Errors, Differentiated Instruction, Enrichment, and Problem Solving.

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