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United States of AmericaPA
Grade 8 Assessment Anchors - Grade 8 Core Standards

9.03 Lines of best fit

Interactive practice questions

Create a scatter plot for the set of data in the table.

$x$x $1$1 $3$3 $5$5 $7$7 $9$9
$y$y $3$3 $7$7 $11$11 $15$15 $19$19
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Easy
1min

Identify the type of correlation in the following scatter plot.

Easy
< 1min

Identify the type of correlation in the following scatter plot.

Easy
< 1min

Identify the type of correlation in the following scatter plot.

Easy
< 1min
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Outcomes

CC.2.4.8.B.1

Analyze and/or interpret bivariate data displayed in multiple representations.

M08.D-S.1.1.2

For scatter plots that suggest a linear association, identify a line of best fit by judging the closeness of the data points to the line.

M08.D-S.1.1.3

Use the equation of a linear model to solve problems in the context of bivariate measurement data, interpreting the slope and intercept. 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.

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