Some examples of correlation coefficients are the relationships between deer hunters and deer in a region, the correlation between the distance a golf ball travels and the amount of force striking it and the relationship between a Fahrenheit and a Celsius temperature value. Correlation coefficients are measured within the range of -1 and 1. A stronger absolute value indicates a stronger linear relationship between the two variables.
A correlation coefficient that is equal to 0 demonstrates the weakest possible linear relationship between the components being examined. A value of either -1 or 1 represents the strongest possible correlation.
The correlation is negative if one variable decreases as the other grows. This could be exemplified by the deer and deer hunter relationship. The number of deer will most likely decrease as the number of deer hunters increases. In the case of the Fahrenheit and Celsius temperature relationship, the correlation will always be positive because as one variable increases, so does the other.