Linear Regression 1

Describe the correlation of the data.

• Strong positive correlation

• No correlation

• Strong negative correlation

Answer explanation

Describe the correlation of the data.

• Strong positive correlation

• No correlation

• Strong negative correlation

Answer explanation

Estimate the value of the correlation coefficient for the data.

• 1

• 0.9

• -0.9

• -1

Answer explanation

Which graph has the strongest positive correlation?

• 
• 
• 
• 

Answer explanation

Which graph has the weakest correlation?

• 
• 
• 

Answer explanation

Which statement is the best description of the relationship between the independent and dependent quantities?

• As temperature increased, the amount of gas used increased.

• As temperature increased, the amount of gas used decreased.

• There is no clear relationship between temperature and gas use.

Which line best fits the data in the scatterplot?

• A

• B

• C

• None of these