Exam 5: Ice Cream and Crime: Computing Correlation Coefficients

If you wanted to compute the correlation between one nominal-level variable and one interval-level variable, which type of correlation should you use?

If X decreases in value as Y decreases, what type of correlation exists?

When data points group together in a cluster from the upper left-hand side of the xy axis to the lower right-hand side, what is this?

How does a positive slope differ from a negative slope?

If variables change in the same direction, what type of correlation is this called?

If the correlation between variables is .70, what percentage of the variance is not shared variance?

This is another word for a negative correlation.

In certain cases, Pearson's product-moment correlation coefficient can have values greater than 1.

When testing partial correlation, the impact of a third variable is ______.

What type of correlation exists if the less money you put in the bank, the less interest you will earn?

What would you use to visually represent a correlation?

If variables change in the opposite direction, what type of correlation is this called?

Which of the following is an example of a correlation?

Which of the following correlations would be interpreted a moderate relationship?

If X decreases in value as Y increases in value, what type of correlation exists?

If the correlation between variables is .60, what is the coefficient of alienation?

What is the purpose of a scatterplot?