2. Missing Outlier Data. Normal probability plots don’t tell you how many outliers there are or where they are. You can use them to see whether or not there are any outliers in your data set ...

On the other hand, probability plots are more convenient for estimating percentiles or probabilities. There are many reasons why the point pattern in a Q-Q plot may not be linear. Chambers and others ...

F. F. Gan, Kenneth J. Koehler, John C. Thompson, Probability Plots and Distribution Curves for Assessing the Fit of Probability Models, The American Statistician, Vol. 45, No. 1 (Feb., 1991), pp.