While scatterplots provide a visual assessment of the relationship between variables, the correlation coefficient offers a numerical measure of the strength and direction of a linear relationship. The ...

Despite the chant that correlation is not causation, some researchers believe the design of scatter plots nudges us to the wrong conclusions. Can a change in their design lessen that risk? Analyzing ...

What is Pearson correlation test, Pearson product moment correlation or Pearson r? Pearson’s correlation helps us understand the relationship between two quantitative variables when the relationship ...

Lehigh researchers create new method that improves consistency between predicted and observed data. An international team of mathematicians led by Lehigh University statistician Taeho Kim has ...

Only 80% prediction confidence ellipses can be selected in the multivariate output options dialog. You must use the Curves menu to display mean confidence ellipses. You can use the confidence ...

Examine the scatter plot of the first two principal components shown in Figure 19.6. Each marker on the plot represents two principal component scores. The output component scores are a linear ...