Correlation, Lines of Best Fit, Causation, Interpolation & Extrapolation

The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages. 

• 12 chapters
• 15 chapters
• 18 chapters
• 21 chapters

Tags

CCSS.HSA.CED.A.2

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

CCSS.HSF.LE.B.5

What type of correlation does this scatter plot show?

• positive 
• negative
• no correlation
• nonlinear association

Tags

CCSS.HSF-LE.A.1B

What is the type of correlation?

• Negative 
• no correlation
• positive 

Tags

CCSS.HSF-LE.A.1B

The equation of the trend line is  $y=\frac{1}{2}x+1$  , 

where x represents number of laps and 

y represents minutes.

How many laps can a bicycle make around the park in 10 minutes?

• 18 laps

• 6 laps

• 22 laps

• 4 laps

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

Tags

CCSS.HSF-LE.A.1B

Which scatterplot below has a correlation coefficient close to r= -0.89?

• 
• 
• 
• 

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Tags

CCSS.8.EE.B.5

Scatterplot A is the graph on the left. Scatterplot B is the graph on the right. Select all the TRUE statements about the Scatterplots.

• Both scatterplots have a positive correlation.

• Scatterplot A (left), has a greater correlation coefficient than Scatterplot B (right). 

• Scatterplot B has a stronger correlation than Scatterplot A. 

• If Scatterplot B has r = 0.352, then Scatterplot A has to have a correlation coefficient less than 0.352. 

As the age of the car increases, its value decreases. Which scatterplot represents this relationship?

• A
• B
• C
• D

Tags

CCSS.8.EE.B.5