Correlation Math

A statistical method used to determine whether a relationship between two variables exists.

• Regression analysis

• z-test

• t-test

• Correlation analysis

Which of the following is an example of positive correlation?

• height and weight of a person

• age and memories of a person

• age and number of appliances

• height and number of gadget

Which of the following is an example of negative correlation?

• height and weight of a person

• age and memories of a person

• age and number of appliances

• age and number of experiences

Which of the following is an example of zero correlation?

• height and weight of a person

• age and memories of a person

• age and number of experiences

• height and number of gadget

Determine the correlation coefficient of the given data.

• - .5477

• .1770

• .8956

• - .9463

As shown in the table, a person's target heart rate during exercise changes as the person gets older. Find the correlation coefficient (r).

• -0.999

• -0.664

• 0.998

• 1.503

A graphical representation of the relationship between two variables.

• trend line

• pictograph

• scatter plot

• bar graph

Statistician who developed the Pearson Product-Moment Correlation.

• Karl Pearson

• James Pearson

• John Spearman

• Spearman rho

The line closest to the point. It tells the direction of correlation that exists between the variable.

• Spot line

• Trend Line

• Curve Line

• Scatter Line

Data that involve two variables.

• Bivariate

• Univariate

• Trivariate

• Monovariate