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4 cards from this section. Quick, good the night before a test.
What is the range of the correlation coefficient?
Think about the extremes where one variable perfectly predicts the other.
What does a correlation coefficient of 0 indicate?
Recall what happens when the two paths of the variables cross.
What does a correlation coefficient of -1 represent?
Think about the direction of the relationship.
True or False: A correlation of 0 means there is a linear relationship.
Remember what correlation measures.
Given that the correlation between study hours and test scores is 0.85, describe the implications for students' study habits.
Consider how focusing on study time could impact grades.
If the correlation coefficient between two variables is calculated to be -0.3, discuss what this indicates about their relationship.
Reflect on what weak correlations mean for real-world interactions.
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