Correlation Coefficient

The correlation coefficient is a number "r" such that: 

• -1<r<1
• -1>r>1
• -1≤r≤1
• -1≥r≤1

Tags

CCSS.HSS.ID.C.8

What type of association does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.HSS.ID.B.5

Describe the following correlation coefficient:

r = -0.89

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

Tags

CCSS.HSS.ID.B.5

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• 0.07 weak
• -0.26 weak
• -0.26 moderate
• 0.07 strong

Tags

CCSS.HSS.ID.C.8

Determine the Correlation Coefficient and decide whether it is weak, moderate, or strong.

• -0.19 weak
• -0.19 moderate
• 0.04 weak
• 0.04 strong

Tags

CCSS.HSS.ID.C.8

As shown in the table, a person's target heart rate during exercise changes as the person gets older. Use the graphing calculator to find the correlation coefficient (r).

• -0.999

• -0.664

• 0.998

• 1.503

Tags

CCSS.HSS.ID.C.8

Part C: Complete the statement about the correlation coefficient using the words "weak, moderate, or strong" and "positive or negative".

There is a _____________ __________ linear association.

• weak

• moderate

• strong

• positive

• negative

Tags

CCSS.HSS.ID.C.8

Which scatter plot diagram shows the strongest positive correlation?

• 
• 
• 
• 

Tags

CCSS.HSS.ID.B.5

Which phrase below is a correct statement about the relationship of x and y?

• r = 1

  Perfect Positive

• r = 1

  Strong Positive

• r = 3

  Strong Positive

• r = 0.90

  Strong Positive

Tags

CCSS.HSS.ID.C.8

Which option below is the correct statement regarding the relational between x and y?

• r = 0.98

  Strong Positive

• r = 0.97

  Strong Positive

• r = 0.99

  Strong Positive

• r = 0.20

  Weak Positive

Tags

CCSS.HSS.ID.C.8