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2 cards from this section. Quick, good the night before a test.
What is the range of values for Pearson's correlation coefficient?
Think about what extremes indicate.
True or False: A correlation coefficient of 0 means that the variables are independent.
Consider how correlation implies relationship.
What does a correlation coefficient of -1 imply?
Think about extremes in correlation.
True or False: A correlation coefficient close to 0 indicates a strong relationship.
Consider what values signify strength.
Given two datasets measuring hours studied and exam scores, calculate the correlation coefficient. Reflect on whether this suggests a causative relationship.
Construct the data table and analyze.
Analyze data showing temperature variations and ice cream sales, then interpret if the correlation suggests an underlying cause.
Look for additional variables such as seasonality.
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