8. Linear regression

Question 1

What does adding a line of best fit do? (Methods1 linear regression)

Answer 1

• Aids description

- Aids prediction

Question 2

What is linear regression? (Methods1 linear regression)

Answer 2

An objective measure of fitting a line to the scatterplot

Question 3

What two things must you know in order to draw a straight line? (Methods1 linear regression)

Answer 3

1) the Y- intercept

2) the slope of the line

Question 4

What is the equation for linear regression? (Methods1 linear regression)

Answer 4

Y = A + B x X