Describing Correlation

Which scatter plots represents the given data set?

• A

• B

• C

• D

Find the Pearson Correlation Coefficient ( r )

• 0.478

• 0.323

• 0.761

• 0.562

What is the interpretation of the computed correlation coefficient?

• Very Weak Positive Correlation

• Weak Positive Correlation

• Moderate Positive Correlation

• Strong Positive Correlation

What type of correlation does this graph have?

• Strong Positive

• Strong Negative

• No Correlation

• Positively Skewed

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

The measure of the strength and direction of a linear relationship

• Interpolation

• Extrapolation

• Correlations Coefficient

• Residual

What type of correlation does this graph have?

• Negative

• No Correlation

• positive

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

• 25 hours

• 35 hours

• 45 hours

• 15 hours

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.