Describing Association & Making Predictions

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

The scatterplot shows the relationship between test scores and number of hours studying for a very difficult exam.

The line of best fit equation is: y = 10x + 30.

Predict your test score if you studied for 4.5 hours.

• 75

• 45

• 60

• 80

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

The scatterplot shows the relationship between height (in cm) and arm span (in cm).

The line of best fit equation is y = 0.95x + 9.4.

Predict the heght if the arm span is 183 cm.

• 173.85 cm

• 181 cm

• 183.25 cm

• 189 cm

Which scatterplot does NOT suggest a linear relationship between x and y?

• 
• 
• 
• 

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative

Describe the association.

• Strong, Positive

• Strong, Negative

• Weak, Positive

• Weak, Negative