Correlation, Causation, and Samples

A correlation shows that two things are

• related
• causing each other
• unrelated

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CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.9

This implies that one variable has a direct affect on the other variable.

• Correlation
• Causation

Tags

CCSS.HSF-LE.A.1B

To graphically represent a correlation between two variables construct a ___.

• box & whisker diagram
• histogram
• normal curve
• scatterplot

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CCSS.HSA.REI.D.12

The correlation coefficient "r" is a value between

• 0 and 1
• 0 and 100
• -1 and 1
• -2 and 2

Tags

CCSS.HSF-LE.A.1B

A perfect positive correlation has a correlation coefficient of ____. 

• 1
• -1
• 0

Tags

CCSS.HSF-LE.A.1B

A perfect negative correlation has a correlation coefficient of ____. 

• 1
• -1
• 0

Tags

CCSS.HSF-LE.A.1B

If there is NO correlation, the correlation coefficient is ____. 

• 1
• -1
• 0

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CCSS.HSF-LE.A.1B

r = 0.3

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

Tags

CCSS.HSF-LE.A.1B

r = - 0.89

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

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8

Estimate the correlation coefficient for this scatterplot.

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

Tags

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.8