What are the applications of correlation matrices?
Correlation matrices are used to summarize data, showing relationships between variables. They help in identifying patterns.
Can you give me some specific examples of where they are used?
Sure! They're commonly used in finance for portfolio management, in healthcare for understanding patient data, and in marketing to analyze consumer behavior.
How do you interpret a correlation matrix?
You look at the values between -1 and 1. Values close to 1 indicate a strong positive correlation, while values close to -1 indicate a strong negative correlation.
Are there any limitations to using correlation matrices?
Yes, correlation matrices can be misleading. They don't imply causation and can be affected by outliers.
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