CORRELATION

What type of association does this graph have?

• positive 

• negative

• none

• all of the above

What type of association does this graph show?

• Positive

• negative

• none

• all of the above

Which sentence describes the relationship shown on this scatter plot?

• As the temperature decreases, the visitors increase. 

• As the temperature increases, the number of visitors increases. 

• As the visitors increase, the temperature decreases. 

• No correlation

Determine the predicted income if 22 hours were worked on an assembly job.

• $207.30

• $449.60

• $691.90

• $543.30

What type of correlation do you think there is between:
Time Spent Watching TV & Grades

• Positive correlation

• Negative correlation

• No correlation

• cannot be determined

Determine the correlation coefficient of the given data:

• .9820

• -.9643

• 1.409

• .6864

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Is this line an accurate line estimate of best fit for the data?

• Yes

• No

Estimate the correlation coefficient for this scatterplot.

• A) r = 1.2

• B) r = 0.89

• C)r = 0

• D) r = -0.89

Estimate the correlation coefficient for this scatterplot.

• A) r = -0.9

• B) r = 1

• C) r = 0.9

• D) r = -1