Associations in Scatter Plots

Which scatter plot appears to be linear?

• Scatter Plot A

• Scatter Plot B

In a scatter plot, what does it mean if the points are closely clustered around a line?

• There is a strong correlation

• There is a weak correlation

• There is no correlation

• The data is evenly distributed

Which of the following best describes a perfect positive correlation in a scatter plot?

• All points lie on a line with a positive slope

• Points are randomly scattered

• Points form a horizontal line

• All points lie on a line with a negative slope

Rank these scatter plots according to the intensity of the correlation represented, from weakest to strongest.

• 1, 2, 3, 4

• 2, 4, 3, 1

• 4, 3, 2, 1

• 1, 3, 4, 2

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

As x increases, y increases

• correlation coefficient

• causation

• positive correlation

• negative correlation

You are analyzing a scatter plot that has a negative correlation. What is true of the of the x and y values?

• As x increases, y decreases

• As x increases, y increases

• As x decreases, y decreases

What represents the x axis?

• ABC Company

• Hours Worked

• Amount Earned in Dollars

• Hours in Car

What represents the y axis?

• ABC Company

• Hours Worked

• Amount Earned in Dollars

• Hours in Car

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump

• negative: the less you run the less distance of your jump

• positive: the further your running start the less your distance