7th grade Math Guide

Statistics and P robability

Cor e Guide

Grad e 7

Draw in formal c omparative in ferenc es a bout two po pulations ( 7.SP.3-4)

Concepts and S kills t o M aster • Us e visua l r epresentations t o c ompar e an d c ontrast nu merical data f rom t wo po pulations using meas ures o f v ariabilit y and c enter. Relat ed S tandards: C urrent C ourse Relat ed S tandards: F utur e Courses 7.SP.1 , 7.SP.3 , 7.SP.4 I.S.ID.1 , I.S.ID.2 , III.S.ID.4 , III.S.IC.6 , A P S tatistics Suppor t f or Teachers Critical Bac kgroun d Kno wledge • Summariz e an d describ e dat a distributio n in terms of their center (median , mean) an d sprea d (interquartil e rang e, m ean absolute deviation) ( 6.SP.1-5) Academic Voc abulary Variatio n, mean, m edian , in terquartil e rang e, m ean ab solut e deviation Resources Curriculum R esources: http://www.uen.org/core/core.do?courseNum=5170#71330 Standard 7.SP.3 : Informal ly assess t he degree of visua l overla p of two numerical dat a distributions wit h similar variabilities , estimating t he differenc e betwee n t he centers by expressing it as a multip le of a measur e of variabilit y. Fo r example , th e mean height of players on the basketball team is 10 cm great er than th e mean height of players on th e socc er team , approximately twic e th e variability (mean absolut e deviation) o n eit h er t eam; o n a dot plot, t h e sep aration b etween t h e t wo d istribution s o f h eight s is n oticeable.

7.SP.3

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