Scatter Plots and Linear Associations

Hector surveyed 500 people and asked them how far they drive to work and what the last digit of their phone number is. He used the results to make a scatter plot.

What type of association should he expect to see in the scatter plot?

• positive association

• negative association

• no association

Jules conducted a survey and asked 100 people how many years of education they have and what their annual income is. She used the results to make a scatter plot.

What type of association should he expect to see in the scatter plot?

• positive association

• negative association

• no association

Label the type of association shown by the scatter plot as positive, negative or none.

• positive

• negative

• none

Label the type of association shown by the scatter plot as positive, negative or none.

• positive

• negative

• none

Label the type of association shown by the scatter plot as positive, negative or none.

• positive

• negative

• none

Label the type of association shown by the scatter plot as positive, negative or none.

• positive

• negative

• none

Which scatter plot(s) could be used to show the relationship between a person’s age and a person’s height?

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• 
• 
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Which scatter plot(s) could be used to show the relationship between a person’s age and the number of syllables in a person’s first and last name?

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• 
• 
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Which best describes the association shown in the scatter plot below?

• Negative and linear

• Negative and non-linear

• Positive and linear

• Positive and non-linear

Which would NOT likely be the variables represented on the scatter plot in #9?

• The number of miles driven and the gallons of gas used

• The number of students in a school and the number of unused lockers

• The number of items ordered at a restaurant and the cost of the bill

• The number of customers in a store and the length of the wait at the register