Correlations
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6 Terms
What is a correlation
A mathematical technique which measures the relationship between two continuous variables (co-variables)
How are the relationships plotted
On a scattergram where each axis represents one of the variables investigated
What is a correlation coefficient
A value between -1 and +1 which tells us the strength and direction of the relationship between 2 variables
What does a correlation coefficient of +1 represent
A perfect positive correlation
What does a correlation coefficient of -1 represent
A perfect negative correlation
The closer the coefficient is to +1 or -1 the ______
stronger the relationship between the co-variables is, and the closer to zero, the weaker the relationship is