Scatter Plots and Trend Lines

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases
• As x increases, y increases
• As x decreases, y decreases

Tags

TEKS.MATH.A.3B

What type of correlation (association)?
The outside temperature and the amount of layers you wear. 

• Positive correlation
• Negative correlation
• No correlation
• All of the above

Tags

TEKS.MATH.A.3B

The number of siblings you have and your weight. 

• Positive correlation
• Negative correlation
• No correlation
• All of the above

Tags

TEKS.MATH.A.3B

The height of students and their scores on a test.

• positive correlation
• negative correlation
• no correlation

Tags

TEKS.MATH.A.3B

The number of notebooks bought and the total cost.

• positive association
• negative association
• no association

Tags

TEKS.MATH.A.3B

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

• A
• B
• C
• D

Tags

TEKS.MATH.8.4B

What type of association does this scatter plot show?

• positive linear association
• negative linear association
• no association
• nonlinear association

Tags

TEKS.MATH.A.3B

About how many male math teachers were there in 2006?

• 15
• 30
• 35
• 45

Tags

TEKS.MATH.A.3B

TEKS.MATH.A.3C

Which of the following could be a possible line of best fit for the data?

• y = -5/2x + 20
• y = -x + 19
• y = x + 20
• y = 2/3x + 15 

Tags

TEKS.MATH.8.4B

What is a line of best fit used for?

• To make predictions
• To make the graph look pretty
• To connect the points
• To make it look like you know what you are doing

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7