Statistics Correlation Coefficient

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

• -1<r<1
• -1>r>1
• -1≤r≤1
• -1≥r≤1

What type of association does this graph have?

• positive 
• negative
• none
• all of the above

What type of association does this graph have?

• positive
• negative
• none
• all of the above

What type of association does this scatter plot represent?

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

r=-0.89

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

r=0.3

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

Describe the relationship between the variables.

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

Describe the relationship between the variables.

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

Describe the relationship.

• Strong positive correlation
• Strong negative correlation
• Weak positive correlation
• No correlation

Describe the relationship between the variables.

• no correlation
• strong positive correlation
• strong negative correlation
• weak positive correlation