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- HSS-ID.B.5Summarize categorical data for two categories in two-way frequency tables. Interpret relative frequencies in the context of the data (including joint, marginal, and conditional relative frequencies). Recognize possible associations and trends in the data.
- HSS-ID.B.6Represent data on two quantitative variables on a scatter plot, and describe how the variables are related.*

- HSS-ID.B.6aFit a function to the data; use functions fitted to data to solve problems in the context of the data. Use given functions or choose a function suggested by the context. Emphasize linear, quadratic, and exponential models.
- HSS-ID.B.6bInformally assess the fit of a function by plotting and analyzing residuals.
- HSS-ID.B.6cFit a linear function for a scatter plot that suggests a linear association.

Analyzing Residuals

Algebra I

Â» Unit:

Modeling With Statistics

Big Idea:So how good is your line of best fit? Students interpret residuals for a line of best fit using online applets.

Creating a Residual Plot

Algebra I

Â» Unit:

Modeling With Statistics

Big Idea:The residual plot for a regression can help students determine if the right model was used and the strength of correlation.

Cinderella's Slipper: Scatterplots, Residuals and Goodness of Fit

Algebra I

Â» Unit:

Our City Statistics: Who We Are and Where We are Going

Big Idea:Students explore the idea of Goodness of Fit for different data sets and learn to fit data that can be modeled with linear associations!

Linear Regression and Residuals

Algebra II

Â» Unit:

Statistics: Two Variables

Big Idea:Examining the size and distribution of errors made by a model can help us determine if the model is appropriate.

Working with Residuals

Algebra I

Â» Unit:

Data and Statistics

Big Idea:Is the graph random? Students develop an understanding of residuals and how they can indicate a linear relationship.

HSS-ID.B.6a

Fit a function to the data; use functions fitted to data to solve problems in the context of the data. Use given functions or choose a function suggested by the context. Emphasize linear, quadratic, and exponential models.

HSS-ID.B.6b

Informally assess the fit of a function by plotting and analyzing residuals.

HSS-ID.B.6c

Fit a linear function for a scatter plot that suggests a linear association.