Contents align to MA.8.CCSS.Math.Content.8.SP Statistics and Probability

### Quiz - 8.SP Statistics and Probability: Investigate patterns of association in bivariate data: Standards: 8.SP.1, 8.SP.2, 8.SP.3, 8.SP.4

by Allen Wolmer
Standards: 8.SP.1, 8.SP.2, 8.SP.3, 8.SP.4
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### 8.SP.1 Investigate patterns of association in bivariate data: Construct and interpret scatter plots

by Allen Wolmer

Investigate patterns of association in bivariate data: Construct 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.

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### 8.SP.2 Investigate patterns of association in bivariate data: Straight lines as models

by Allen Wolmer

Investigate patterns of association in bivariate data: 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.

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### 8.SP.3 Investigate patterns of association in bivariate data: Use the equation of a linear model to solve problems

by Allen Wolmer

Investigate patterns of association in bivariate data: Use 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.

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### 8.SP.4 Investigate patterns of association in bivariate data: Frequencies and relative frequencies

by Allen Wolmer

Investigate patterns of association in bivariate data: Understand 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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