Inferences and Scatter Plots

Households consume much more electricity when the weather is warmer. What is the response variable?

• Temperature

• Electricity

What type of relationship does this graph show?

• Positive Association

• Negative Association

• No Association

What type of relationship does this graph have?

• Positive Association

• Negative Association

• No Association

How would you describe the direction and strength of this scatter plot?

• Positive and Weak

• Negative and Weak

• Negative and Strong

• Positive and Strong

Which scatterplot suggests a linear association?

• 
• 
• 
• 

What type of association does this scatter plot show?

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

What type of association does this scatter plot represent?

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

how would you describe this association?

• positive linear strong

• positive linear weak

• positive linear moderate

• no association

The scatterplot shows the relationship between the number of tickets bought and the amount of money spent buying tickets.  Which would be a reasonable prediction for the cost of buying 6 tickets?

• $8
• $15
• $12
• $10

The following scatter plot shows the weights and lengths of some dinosaurs.  Which statement accurately describes the information?

• The information shows a positive correlation.  The weight of a dinosaur tends to increase according to its length.
• The information shows a negative correlation.  the weight of a dinosaur tends to decrease according to its length.
• The information shows no correlation.  The weight and length vary according to the type of dinosaur.
• The information shows no correlation.  The relationship between the weight and length of a dinosaur is uncertain.