Practice Quiz #5 - Scatter Plots & Correlation Coef (Math 1)

What is the type of association?

• Negative 
• no association
• positive 

What type of association does this graph have?

• positive
• negative
• none
• all of the above

Describe the correlation in the graph shown.

• Strong Negative
• Strong Positive
• Weak Negative
• Weak Positive

Describe the correlation in the graph shown.

• Weak Negative
• Weak Positive
• Strong Negative
• Strong Positive

Estimate the correlation coefficient.

• r=-1
• r=-0.5
• r=1
• r=0.5

Estimate the correlation coefficient.

• r=-1
• r=-0.5
• r=0.5
• r=1

Estimate the correlation coefficient

• r=-1
• r=1
• r=-0.5
• r=0.5

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 
• As the temperature increases, the number of visitors increases. 
• As the visitors increase, the temperature decreases. 
• No correlation

What type of Correlation?

• Positive Correlation

• Negative Correlation

• No Correlation

Which of the following lines represents the line of best fit for the scatter plot?

• A
• B
• C
• D