Exercise
Bivariate Data Analysis
Explore relationships between two variables through bivariate data analysis. Learn to examine scatter plots and summarize statistical associations.
Questions
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MultiChoice
What is bivariate data?
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MultiChoice
Which plot is standard for displaying bivariate numerical data to search for trends?
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MultiChoice
On a scatter plot of study time vs test scores, which is typically the independent variable on the x-axis?
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MultiChoice
On a scatter plot of outdoor temperature vs electricity bill, electricity bill is the:
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MultiChoice
A scatter plot displays a tight cluster of points and two points far to the right. Those two isolated points are called:
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MultiChoice
What does a cluster of points on a scatter plot represent?
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MultiChoice
When fitting a linear model to bivariate data, what does a slope close to 0 suggest?
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MultiChoice
Which of the following bivariate pairs would expectedly show NO correlation?
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MultiChoice
Why do we plot bivariate data on a scatter plot before calculating a line of best fit?
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MultiChoice
In bivariate data, if y increases as x decreases, the variables have:
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MultiChoice
A linear model fit to bivariate data is y = 5x + 10. If x increases by 3, how much does y increase?
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MultiChoice
If x decreases by 2 in the linear model y = -4x + 7, how does y change?