Strength of the correlation

What is the strength of this correlation?

• strong

• moderate

• weak

What is the strength of this correlation?

• strong

• moderate

• weak

What is the strength of this correlation?

• strong

• moderate

• weak

What is the strength of this correlation?

• strong

• moderate

• weak

How do you know this is a strong correlation?

• the points lie on the line

• the points go from top left to bottom right

How do you know this shows a weak correlation?

• the points are close to the line

• the points are reasonably far from the line

• the points are far from the line

What does this graph show?

• As extension increases, so does force.

• As force increases, so does extension.

• How does force affect extension?

• A straight line.

What is the response variable shown?

• extension

• force

• Hooke's law

• the stretchiness of the spring

What is the control variable in this investigation?

• extension

• force

• Hooke's law

• the stretchiness of the spring

What is the explanatory variable shown?

• extension

• force

• Hooke's law

• the stretchiness of the spring