The positive predictive value is the probability that a test gives a true result for a true statistic. The negative predictive value is the probability that a test gives a false result for a false statistic.
Predictive Value
See also
Sensitivity, Specificity, Statistical Power, Statistical TestExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Predictive Value." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/PredictiveValue.html