8.SP.A.2

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- 8.SP.A.1Construct and interpret scatter plots for bivariate measurement data to investigate patterns of association between two quantities. Describe patterns such as clustering, outliers, positive or negative association, linear association, and nonlinear association.
- 8.SP.A.2Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.
- 8.SP.A.3Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept. For example, in a linear model for a biology experiment, interpret a slope of 1.5 cm/hr as meaning that an additional hour of sunlight each day is associated with an additional 1.5 cm in mature plant height.
- 8.SP.A.4Understand that patterns of association can also be seen in bivariate categorical data by displaying frequencies and relative frequencies in a two-way table. Construct and interpret a two-way table summarizing data on two categorical variables collected from the same subjects. Use relative frequencies calculated for rows or columns to describe possible association between the two variables. For example, collect data from students in your class on whether or not they have a curfew on school nights and whether or not they have assigned chores at home. Is there evidence that those who have a curfew also tend to have chores?

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## 8.SP.A.2

## Know that straight lines are widely used to model relationships between two quantitative variables. For scatter plots that suggest a linear association, informally fit a straight line, and informally assess the model fit by judging the closeness of the data points to the line.

27 Lesson(s)

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8th Grade Math »
Unit: Systems of Linear Equations

8th Grade Math »
Unit: Systems of Linear Equations

### Line of Best Fit Assessment Review

8th Grade Math »
Unit: Linear Regression

8th Grade Math »
Unit: Linear Regression

### Super Mario World 3

8th Grade Math »
Unit: Linear Regression

8th Grade Math »
Unit: Linear Regression

### Fast Hands Follow Up

8th Grade Math »
Unit: Linear Regression

8th Grade Math »
Unit: Linear Regression

### Construct a line of best fit

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

### Categorical data 2

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

### Introduction to bivariate data

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

### Categorical data 1

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

### Solve problems invoving bivariate data

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

### Bivariate Data Assessment

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

Big Idea:

#### To help guide instruction for the year and establish a baseline for quarterly benchmark assessments, students will take a benchmark test aligned to the CCSS.

Standards:

Favorites
(11)

Resources
(8)

Reflections
(1)

### Correlation and causation + mixed review

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

8th Grade Math »
Unit: PATTERNS OF ASSOCIATION IN BIVARIATE DATA

### Unit Project Research with Statistics

8th Grade Math »
Unit: Functions

8th Grade Math »
Unit: Functions

### Box and Whisker Spiral Lesson

8th Grade Math »
Unit: Statistical Spirals

8th Grade Math »
Unit: Statistical Spirals

Big Idea:

#### Students can understand a box and whisker plot by constructing it.

Standards:

Resources
(20)

Reflections
(1)

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HS Algebra

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HS Geometry

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