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.C.8

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7

What type of association does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.HSF-LE.A.1B

What type of association does this scatter plot represent?

• positive linear association
• negative linear association
• no association
• nonlinear association

Tags

CCSS.HSF-LE.A.1B

r=-0.89

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

Tags

CCSS.HSF-LE.A.1B

r=0.3

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

Tags

CCSS.HSS.ID.C.8

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.HSF-LE.A.1B

What is the correlation coefficient of the data characteristics shown?

• -.928

• .928

• .861

• -.861

Tags

CCSS.HSS.ID.C.8

Using your graphing calculator determine the line of best fit and the correlation coefficient of the data in the table.

• y = 4.6x - 347

  r = .942

• y = 4.6x - 347

  r = .888

• y = 4.6x + 347

  r = .942

• y = 4.6x + 347

  r = .888

Tags

CCSS.HSS.ID.C.8

CCSS.HSS.ID.B.6

CCSS.HSS.ID.C.7