How do you determine the affects of watching many hours of TV?

In this lesson you will learn how to interpret scatter plots

by identifying positive, negative, or no association.

Let’s ReviewLet’s Review

Homework completed

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Let’s ReviewA Common Mistake

Positive

Negative

Let’s ReviewCore Lesson

Homework completed

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association

Let’s ReviewCore Lesson

X Y

Hours watching TV

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Negative association

Let’s ReviewCore Lesson

No association

# of letters in first name

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Let’s ReviewCore Lesson

Okay, maybe a little less

TV.

In this lesson you have learned how to interpret a scatter plot

by identifying positive, negative, and no association.

Let’s ReviewGuided Practice

Determine the association in each graph.

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# letters in name

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Let’s ReviewExtension ActivitiesWould you expect a positive, a negative, or no association between the two variables? Explain why.

• A person’s height and the number of letters in that person’s name.• The time spent exercising and the amount of calories burned.• The number of pages printed and the amount of ink left in the printer.

Let’s ReviewExtension Activities

Collect two sets of data that, when collected, would likely have a:• Positive association• Negative association• No association

Let’s ReviewQuick Quiz

Which graph shows a positive association?

# of withdrawals

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Time exercising

Let’s ReviewQuick Quiz

What would be the association between shoe size and number of miles traveled to school each day?