Correlation Correlation is a statistical technique that measures the strength and direction of a relationship between two variables. It quantifies how one variable changes concerning another, helping to identify patterns or associations. Key Features of Correlation Types of Correlation Correlation Coefficient (r) Definition: Range: Value of rrr Strength Example r=+1r = +1r=+1 Perfect positive Both variables increase proportionally. 0<r<10 < r < 10<r<1 Positive (weak to strong) Study hours and