Lesson 13-2: Linear Regression (11/4)

Causation is when a change in one variable causes the other variable to change.

• True

• False

Linear regression is a method used to find the line of best fit.

• True

• False

The line of best fit is ...

• the most accurate trend line.

• the line of longitude.

• the line of latitude.

• none of the above.

What is the formula for the line of best fit?

• y= ax + b

• a^2 + b^2 = c^2

• Ax + By = C

• (1/2)(b)(h)

Which scatter plot shows a positive correlation?

• Graph A

• Graph B

• Graph C

• Graph D

Describe the correlation of the data.

• Positive correlation

• No correlation

• Negative correlation

Answer explanation

Describe the correlation of the data.

• Positive correlation

• No correlation

• Negative correlation

Answer explanation

Which line best fits the data in the scatterplot?

• A

• B

• C

• None of these

Write the equation for the linear regression shown.

• $y=ax+b$

• $y=0.6x+0.1$

• $y=0.72x+r$

• $y=0.1x+0.6$

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.C.7

Write the equation for the linear regression shown.

• $y=-5.11x+3.23$

• $r=0.8$

• $y=3.23x\ -\ 5.11$ $\$

• $y=0.64x+0.8$

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.C.7