In performing a regression analysis involving two numerical variables,you are assuming
A)the variances of X and Y are equal.
B)the variation around the line of regression is the same for each X value.
C)that X and Y are independent.
D)All of the above.

Question

Quizplus · Accepted Answer

In regression analysis, one of the key assumptions is that the variance of the residuals (errors) is constant across all levels of the independent variable (X). This is known as homoscedasticity, which is what choice B describes. Choices A and C are incorrect assumptions for regression analysis.

In Performing a Regression Analysis Involving Two Numerical Variables,you Are