Module 10

Question 1

For linear regression to be appropriate, the graph should map

Answer 1

To a sraight line

Question 2

What’s the difference between r and r squared?

Answer 2

r- how strong correlation is
r^2- % of variability that can be explained by the linear regression model

Question 3

Do intercepts matter at all when comparing two linear regression models?

Answer 3

No

Question 4

What error must we avoid regarding the range of values?

Answer 4

Making inferences on values outside of our range