CCSS.Math.Content.HSS.ID.C.8

Estimate the correlation coefficient for this scatterplot.

• r = 1.2
• r = 0.89
• r = 0
• r = -0.89

Tags

CCSS.Math.Content.HSS.ID.C.8

Estimate the correlation coefficient for this scatterplot.

• r = 1.2
• r = 0.89
• r = 0
• r = -0.89

Tags

CCSS.Math.Content.HSS.ID.C.8

r=-0.89

• Strong positive 
• Weak positive 
• Strong negative 
• Weak negative 

Tags

CCSS.Math.Content.HSS.ID.C.8

What kind of correlation?

• Positive
• Negative
• No

Tags

CCSS.Math.Content.HSS.ID.C.8

CCSS.Math.Content.HSS.ID.B.6

What is a trend line that shows the most accurate relationship between x and y and is is very close to most of the data points?

• linear regression
• no correlation
• trend line
• line of best fit

Tags

CCSS.Math.Content.HSS.ID.C.8

CCSS.Math.Content.HSS.ID.B.6

What letter do we use to represent correlation coefficient?

• c
• r
• p
• h

Tags

CCSS.Math.Content.HSS.ID.C.8

Data is analyzed comparing hours studied and grades. It is determined that the correlation coefficient is 0.92. What does this mean?

• There is a strong positive correlation between studying and grades.

• There is a strong negative correlation between studying and grades.

• There is a weak positive correlation between studying and grades.

• There is a weak negative correlation between studying and grades.

Tags

CCSS.Math.Content.HSS.ID.C.8

A correlation value (r) that has a strong, positive linear association would have a value close to

• 1

• 0

• -1

• Cannot be answered

Tags

CCSS.Math.Content.HSS.ID.C.8

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1

Tags

CCSS.Math.Content.HSS.ID.C.8

CCSS.Math.Content.HSS.ID.B.6

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1

Tags

CCSS.Math.Content.HSS.ID.C.8

CCSS.Math.Content.HSS.ID.B.6