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# Summary Statistics, Summarizing Univariate Distributions

## Describing single variable data with additional measures of the center and common percentiles

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.

## Summary Statistics, Summarizing Univariate Distributions MGSE9-12.S.ID.2

This Concept teaches students about other measures of center such as the mid-range, trimmed means and weighted mean. It also introduces the concept of percentiles, and the relationship to quartiles.
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