What do your eyes tell you about the Form, Direction, & Strength of these displays?

Note: If the form is nonlinear, we shouldn’t report direction - a curve may rise and then fall.

A

a scatter plot, with a tightly-clumped point cloud with a negative slope

Form:

Linear

Nonlinear

None

Direction:

Positive

Negative

N/A

Strength:

Strong

Weak

B

A scatter plot showing no relationship

Form:

Linear

Nonlinear

None

Direction:

Positive

Negative

N/A

Strength:

Strong

Weak

C

A scatter plot, having a tight point cloud with a positive slope

Form:

Linear

Nonlinear

None

Direction:

Positive

Negative

N/A

Strength:

Strong

Weak

D

a loose cluster of points sloping upward from the bottom left to the top right

Form:

Linear

Nonlinear

None

Direction:

Positive

Negative

N/A

Strength:

Strong

Weak

E

a cluster of points forming an upside-down U

Form:

Linear

Nonlinear

None

Direction:

Positive

Negative

N/A

Strength:

Strong

Weak

F

a loose cluster of points sloping downward from the top left to the bottom right

Form:

Linear

Nonlinear

None

Direction:

Positive

Negative

N/A

Strength:

Strong

Weak

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