11. Correlation

Scatterplots & Intro to Correlation

Multiple Choice
In the context of scatterplots, how many variables are typically displayed on a standard scatterplot?
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Multiple Choice
Given a scatterplot showing a positive linear relationship between hours studied and exam scores, which statement is an inference that can be made by using the graph?
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Multiple Choice
In a scatterplot, which of the following Pearson correlation coefficients represents the weakest linear correlation?
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Multiple Choice
In general, which statement about correlation is correct when deciding whether a relationship is causal?
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Multiple Choice
In a scatterplot, which description best represents a strong negative correlation?
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Multiple Choice
In the context of scatterplots, correlation occurs when which of the following is true about two variables?
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Multiple Choice
True or false: If the correlation between two variables is strong, then changes in one variable cause changes in the other (i.e., correlation implies causation).
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Multiple Choice
Which of the following best describes a scatterplot and its primary use in statistics?
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Multiple Choice
Given the following correlation coefficients, which value of $r$ would most likely correspond to a scatterplot showing a strong negative linear relationship between two variables?
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Multiple Choice
In the context of scatterplots, what is the primary goal of correlation?
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Multiple Choice
Which scatterplot shows a negative correlation between $x$ and $y$ ?
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Multiple Choice
In a scatterplot, a negative correlation means which of the following?
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Multiple Choice
In the context of scatterplots and correlation, what does the statement "correlation does not imply causation" mean?
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Multiple Choice
Which of the following best describes a scatterplot and its primary use in statistics?
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Multiple Choice
In a scatterplot, a negative correlation indicates which overall pattern between variables $x$ and $y$ ?
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