Wassily Hoeffding

Wassily Hoeffding (June 12, 1914 – February 28, 1991) was an American statistician and probabilist. Hoeffding was one of the founders of nonparametric statistics, in which Hoeffding contributed the idea and basic results on U-statistics.

In probability theory, Hoeffding's inequality provides an upper bound on the probability for the sum of random variables to deviate from its expected value. Provided by Wikipedia