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What was your favorite toy as a child?
You must pick one! Please mark which your favorite was with a tally. Girls- use the red marker Boys- use the black marker
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Objectives Distinguish between explanatory and response variables for categorical data. Make a segmented bar chart to display the relationship between two categorical variables. Determine if there is an association between two categorical variables and describe the association if it exists.
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Which variable would be explain or predict the other variable?
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A response variable measures an outcome of a study.
An explanatory variable may help predict or explain changes in a response variable.
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Use google charts to make a segmented bar graph
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Do Now Get a chromebook and open a google doc
Take out notes from last class (2.1 What was your favorite toy?)
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Do now Take out notes from last class (2.1 what was your favorite toy)
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There is an association between two variables if knowing the value of one variable helps us predict the value of the other. If knowing the value of one variable does not help us predict the value of the other, then there is no association between the variables.
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What would the segmented bar chart look like if there were no association between gender and favorite toy?
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