Question

R2 (Coefficient of determination) to Evaluate the model _____.

A) Measures the strength of the relationship
B) Indicates the presence of outliers
C) Determines the sample size
D) Measures the probability of an event

Answer 1

The coefficient of determination, r², measures the strength of the relationship between the independent and dependent variables.

Step-by-step explanation:

The coefficient of determination, r², evaluates the model by measuring the strength of the relationship between the independent variable (x) and the dependent variable (y).

The value of r² represents the percentage of variation in the dependent variable that can be explained by variation in the independent variable using the regression line.

For example, if r² is 0.4397, it means that approximately 44% of the variation in the final exam grades can be explained by the variation in the grades on the third exam.