Grade 7
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Expressions & Equations
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Geometry
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The Number System
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Ratios & Proportional Relationships
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Statistics & Probability
Arizona Math Standard: 7.SP.A.1
Understand that statistics can be used to gain information about a population by examining a sample of the population; generalizations about a population from a sample are valid only if the sample is representative of that population. Understand that random sampling tends to produce representative samples and support valid inferences.