Looking at Data Sets

What is a scatter plot?

• A graph that shows the relationship of two data sets.

• A graph drawn using rectangular bars to show how large each value is.

• A graph that shows information that is connected in some way.

• A graph that shows data changing over time.

Name the type of association.

• no association

• nonlinear association

• positive associtation

• negative association

• scatter association

Name the type of association.

• no association

• nonlinear association

• positive associtation

• negative association

• scatter association

Which scatter plot has a stronger association?

• Scatter Plot A because the points are closer together.

• Scatter Plot B because the points are further apart.

Which is a true statement about two numerical sets of data that have negative association?

• A. As one variable increases, the other variable does not change.

• B. As one variable increases, the other variable increases.

• C. As one variable decreases, the other variable decreases.

• D. As one variable increases, the other variable decreases.

What is the correlation?

• Negative correlation

• No correlation

• Positive correlation

• All of the above

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

Name the type of association.

• no association

• nonlinear association

• positive associtation

• negative association

• negipositive association

If you compare the medians of each data set, who spends more time online?

• Seventh graders

• Eight graders

• Both grades spend an equal amount of time online.

• Impossible to determine form the data sets.

5 red shirts

17 red shirts

40 red shirts

83 red shirts

• 5 red shirts

• 17 red shirts

• 40 red shirts

• 83 red shirts