8th Grade Math Review--Statistics

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

• Positive correlation
• Negative correlation
• No correlation

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

What is the type of association?

• Negative 
• no association
• positive 

Tags

CCSS.HSF-LE.A.1B

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.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.F.B.4

CCSS.8.SP.A.3

What type of association does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.HSF-LE.A.1B

Which scatter plot could have a trend line whose equation is y = 3x + 10?

• A
• B
• C
• D

Tags

CCSS.8.EE.B.5

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.SP.A.1

CCSS.8.SP.A.2

CCSS.8.F.B.4

CCSS.8.SP.A.3

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

This scatterplot could show the relationship between which two variables?

• speed of an airplane (x) vs. distance traveled in one hour (y)
• outside air temperature (x) vs. air-conditioning costs (y)
• age of an adult (x) vs. height of an adult (y)
• distance traveled (x) vs. gas remaining in the tank (y)

Tags

CCSS.8.SP.A.1

CCSS.8.SP.A.2

CCSS.8.F.B.4

Which graph best shows a positive correlation between the number of hours studied and the test scores?

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

Tags

CCSS.8.EE.B.5

Which graph shows a line of best fit for the scatter plot?

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

Tags

CCSS.8.EE.B.5