Which of the following are true assumptions underlying linear regression: 1)for each value of X,there is a group of Y values which is normally distributed;2)the means of these normal distributions of Y values all lie on the straight line of regression;and/or 3)the standard deviations of these normal distributions are equal?
A)Only (1)and (2)
B)Only (1)and (3)
C)Only (2)and (3)
D)All of them

Question

Quizplus · Accepted Answer

All three statements are true assumptions underlying linear regression: normal distribution of Y values for each X, means lying on the regression line, and equal standard deviations.

Which of the Following Are True Assumptions Underlying Linear Regression