Correlation on a Graph

What type of correlation does this graph have?

• 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

When the data closely resembles a line

• Strong Correlation

• Weak Correlation

• No Correlation

• Correlation

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

• 25 hours

• 35 hours

• 45 hours

• 15 hours

The correlation coefficient of the regression line is 0.986. What does that mean?

• There is a very strong, positive correlation between the variables.

• There is a very strong, negative correlation between the variables.

• There is a weak, negative correlation between the variables.

• As fork length increases, so does total length.

Given that the scatter diagram has a product moment correlation coefficient of 0.9, what can you conclude?

• There is a weak negative linear correlation between x and y

• There is a strong negative linear correlation between x and y

• There is a strong positive linear correlation between x and y

• There is a weak positive linear correlation between x and y

The correlation coefficient of this graph is closest to:

• 0.97

• 0.75

• -0.98

• 0.48

Determine the correlation coefficient of the given data.

• - .5477

• .1770

• .8956

• - .9463

As x increases, y increases

• correlation coefficient

• causation

• positive correlation

• negative correlation

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.