Exam 5: Computing Correlation Coefficients: Ice Cream and Crime

If the range of one or both of the variables is restricted,the correlation will be ______.

This is a correlation that is best expressed as a straight line.

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 the coefficient of determination between two variables is .81,what is the Pearson's correlation coefficient?

Which of the following is an example of a correlation?

A negative correlation between two variables would be represented in a scatterplot as ______.

When you have a direct correlation,both variables change in the same direction.

How does a positive slope differ from a negative slope?

What is the numerical index that describes the relationships between two variables?

The coefficient of determination is the percentage of variance in one variable that ______.

If you wanted to compute the correlation between two ordinal-level variables,which type of correlation should you use?

What is the purpose of a scatterplot?

If the correlation between two variables was equal to 0,the scatterplot between these two variables would be represented as ______.

It is better to find a positive correlation as opposed to a negative correlation.

Which of the following correlations represents a weak relationship?

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

The Pearson's product-moment correlation examines the relationship between what type of variables?

______ measure is equal to the percentage of variance in one variable that is accounted for by the variance in a second variable.

What type of correlation is there when variables change in the opposite direction?

A correlation coefficient is a numerical index that reflects the relationship between ______.