10. Quizzes On Scatter Plots

Check Your Scatterplot Skills

Use the scatterplot between Temp and Sales to solve the matching quiz.

QUIZ QUESTION::

Match each term to the description that applies for the above scatterplot.

ANSWER CHOICES:



Term

Description

Positive (Direct)

Close to 1

Moderate

Close to 0

Strong

Close to -1

Weak

Negative (Indirect)

SOLUTION:

Term

Description

Positive (Direct)

Close to 1

Strong

Check Your Scatterplot Skills (Part II)

Use the scatterplot between car weight and miles per gallon to solve the matching quiz. Again, you can download the data here.

QUIZ QUESTION::

Match each term to the description that applies for the above scatterplot.

ANSWER CHOICES:



Term

Description

0

Negative (Indirect)

Weak

-0.67

Strong

0.67

Positive (Direct)

Moderate

SOLUTION:

Term

Description

Negative (Indirect)

-0.67

Moderate

Check Your Scatterplot Skills (Part III)

Use the scatterplots for the three datasets below to answer the following quiz. Again, you can download the data here.

QUIZ QUESTION::

For the above scatterplots, match the plot to the corresponding correlation coefficient.

ANSWER CHOICES:



Scatter plot

Correlation Coefficient (r) Value

Both 1.0 and -1.0

-1.0

-1.0

0.5

1.0

1.0

-0.5

0.0

SOLUTION:

Scatter plot

Correlation Coefficient (r) Value

-1.0

-1.0

1.0

1.0

0.0