The formula to calculate the coefficient of non-determination (CND) is:
\[ CND = 1 - R^2 \]
Where:
The coefficient of non-determination, represented as \( 1 - R^2 \), is a statistical measure that indicates the proportion of the variance in the dependent variable that is not predictable from the independent variable(s). It complements the coefficient of determination (R²), which measures the proportion of the variance in the dependent variable that is predictable from the independent variable(s). A higher value of CND indicates a larger amount of unexplained variance in the model.
Let's assume the coefficient of determination (R²) is 0.75.
Step 1: Calculate the coefficient of non-determination (CND):
\[ CND = 1 - 0.75 = 0.25 \]
Therefore, the coefficient of non-determination (CND) is 0.25.