W12 - MULTIPLE REGRESSION

Question 1

Define multiple regression

Answer 1

Variation in X1 AND X2 explains variation in Y

Question 2

What linear combination of x1 and x2 explain variance in Y?

Answer 2

Partial regression coefficients are different to zero

Question 3

How much of the variance in Y is explained by variation in x1 and x2?

Answer 3

adjusted Rsqr