
correlation matrix
A correlation matrix is a table that shows the relationship between multiple variables. Each cell in the matrix indicates how strongly two variables are related, measured on a scale from -1 to 1. A value close to 1 means they are positively related; as one increases, so does the other. A value near -1 indicates a negative relationship; as one increases, the other decreases. A value around 0 suggests little or no relationship. This tool helps identify patterns and connections among data, making it useful in fields like finance, research, and social sciences.