Association
Predicting
Correlation
Finding Y
Vocabulary
100


What type of association does this graph have?


Negative.

100


Based on the graph, if Joe earned $400, how many hours did he work?

25 hours

100


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


positive:  the further you run the further you jump





100

Using the scatterplot below, come up with a reasonable estimate for y when x = 5


About 20 or 21

100

A graph with points to show the relationship between two sets of data

Scatter plot

200


If a scatterplot has no association then...






...its ordered pairs have no predictable pattern





200


About how many male math teachers were there in 2006?




35

200
Describe the correlation in the graph shown.






Weak Negative





200

Using the scatterplot below, come up with a reasonable estimate for x when y = 60

Around 19 or 20

200

A group of points that occur together.

Cluster

300
What is the type of correlation?






no association





300
Mrs. Collins made a scatterplot to show the relationship between the number of absences and a student’s final exam score. Based on this scatterplot, a student with 6 absences should get approximately what score on the final exam? 





76

300


What type of correlation does this graph have?

positive 

300

Using the scatterplot below, come up with a reasonable estimate for y when x = 13

Around 40-45

300

A data point that is very different from the rest of the data

Outlier

400

Describe the association between the number of lanes rented and the number of people bowling.


Positive linear association

400


The scatter plot shows the relationship between the number of chapters and the total number of pages for several books.  Use the trend line to predict how many chapters would be in a book with 180 pages.



18 chapters 

400


What type of correlation does this scatter plot show?


negative linear association





400

Using the scatterplot below, come up with a reasonable estimate for y when x = 10

Around 20

400

A line on a scatter plot that helps show the correlation between data sets more clearly
Normally splits the data set in half

Line of best fit

500

Describe the association for the graph.


Non-Linear and No association

500


What is a line of best fit used for?






To make predictions





500

What type of correlation (association)?
The outside temperature and the amount of layers you wear.


Negative correlation





500

Using the scatterplot below, come up with a reasonable estimate for x when y = 10

Around 12

500

Word describing the association between a set of data

Correlation