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# Accuracy and Precision

## Data that is close to a measured value versus data that is grouped closely together.

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.
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## Accuracy vs. Precision - Overview

by CK-12 //basic
Overview
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• Video

## Accuracy vs Precision

by CK-12 //basic
Explains the difference between accuracy and precision by using two children's games: "Where's Waldo" and "Pin the Mitten on the Kitten".
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• Video

## Accuracy vs. Precision - Example 1

by CK-12 //basic
Determining accuracy of values
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## Accuracy vs. Precision - Example 2

by CK-12 //basic
Determining precision of values
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## Accuracy vs. Precision - Example 3

by CK-12 //basic
Determining accuracy and precision of a set of values
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• Video

## Accuracy and Precision - Overview

by CK-12 //basic
Overview
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