7th grade Math Guide

Statistics and P robability

Cor e Guide

Grad e 7

Us e random s ampling to dr aw in ferences abo ut a po pulatio n ( 7.SP.1-2) Standard 7.SP.1 : Understan d that statistics can be us ed to gai n informatio n about a populatio n by examining a sampl e of t he populatio n, and that generalizatio n about a populatio n from a sampl e ar e vali d onl y if t he sampl e is representat ive of that population. Understan d that random sampling is mo r e li kely t o pr oduc e representat ive samples and s upport v alid i nferences. Concepts and S kills t o M aster

• Understan d t hat r epresentat ive sampl es c an be used t o m ake v alid in ferenc es a bout a po pulation. • Collect a r andom s ample. • Understan d t hat a r andom sampl e increas es the li kelihoo d o f o btaining a r epresentat ive sampl e of a p opulation.

Relat ed S tandards: C urrent C ourse

Relat ed S tandards: F utur e Courses

7.RP.1 , 7.RP.2 , 7.RP.3 , 7.SP.2 , 7.SP.3 , 7.SP.4 , 7.SP.5

III.S.IC.1 , III.S.IC.3 , III.S.IC.4 , III.S.IC.6 , A P S tatistics

Suppor t f or Teachers Critical Bac kgroun d Kno wledge

• Understand ratio concepts and use ratio reasoning to solve problems (6.RP.3) • Anticipate that samples vary (6.SP.1) • Understand data distributions can be described by their center, spread, and overall shape (6.SP.2) • Understand the likelihood of a chance event (7.SP.5)

Academic Vocabulary Inferenc e, vali d, s ampl e, random s ampl e, representat ive sampl e, population Resources Curriculum R esources: http://www.uen.org/core/core.do?courseNum=5170#71330

7.SP.1

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