Unit 3: Day 3 - Scatter Plots and Line of Best Fit

What is a scatter plot?

• A graph that shows the relationship of two data sets.
• A graph drawn using rectangular bars to show how large each value is.
• A graph that shows information that is connected in some way.
• A graph that shows data changing over time.

Tags

CCSS.HSS.ID.B.6

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.8.EE.B.5

Which scatter plot shows a linear relationship between x and y?

• Graph A
• Graph B
• Graph C
• Graph D

Tags

CCSS.8.F.A.3

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

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

What is the correlation?

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

Tags

CCSS.HSF-LE.A.1B

What type of correlation?

the number of siblings you have and your weight

• Positive correlation

• Negative correlation

• No correlation

• All of the above

What type of correlation?

The outside temperature and the amount of layers you wear.

• Positive correlation

• Negative correlation

• No correlation

• All of the above

What would be the correlation between study time and test grades?

• positive
• negative
• none
• cannot be determined

Tags

CCSS.HSF-LE.A.1B

TRUE OR FALSE: Data points that lie above the trend line should be about the same distance as data points below the trend line.

• True

• False

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7