Probability plot

In statistics, a probability plot is a graphical technique for comparing two data sets, either two sets of empirical observations, one empirical set against a theoretical set, or (more rarely) two theoretical sets against each other.

Probability plot may refer to:

• P–P plot, "Probability-Probability" or "Percent-Percent" plot;
• Q–Q plot, "Quantile-Quantile" plot, which is more commonly used.
• Normal probability plot, a Q–Q plot against the standard normal distribution

See also

• Probability plot correlation coefficient
• Probability plot correlation coefficient plot

References

• Gibbons, Jean Dickinson; Chakraborti, Subhabrata (2003), Nonparametric statistical inference (4th ed.), CRC Press, ISBN 978-0-8247-4052-8
• Thode, Henry C. (2002), Testing for Normality, CRC Press, ISBN 978-0-8247-9613-6