Exam 5: Computing Correlation Coefficients: Ice Cream and Crime

If two variables are correlated,this implies that one variable causes the other.

Which of the following refers to a correlation between two variables?

Which of the following is another word for a positive correlation?

In a correlation matrix,the numbers above and below the diagonal row of 1.00s are a mirror image of themselves.

The amount of unexplained variance in a relationship between two variables is called ______.

When interested in examining how one variable changes in relation to another,which of the following descriptive statistics would you want to use?

You can use Pearson's correlation coefficient if one or more of your variables are ordinal or nominal.

What is the range of possible values of Pearson's product-moment correlation coefficient?

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

"The more oatmeal you eat,the lower your blood cholesterol level" is an example of a ______.

In a partial correlation,the impact of mediating variable is removed.

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

Why will you rarely find a perfect correlation between any two variables?

This is a situation in which the correlation between two variables begins as a direct correlation,then becomes an indirect correlation,or vice versa.

In the formula for the Pearson's correlation coefficient,what is the difference between the sum of a set of values squared and the sum of the squared values?

If the correlation between variables is 0.70,what percentage of the variance is not shared variance?

What type of correlation exists if the more you exercise,the less you will weigh?