probability theory
theory of probability

This idea was very important for the time, because it did new things with probability theory.

Later in his life he wrote on probability theory and mathematical education.

Expected value is a term used in probability theory and statistics.

Probability theory is an established field of study in mathematics.

He is known for his work in probability theory, statistics and financial mathematics.

He made major contributions to probability theory and its applications.

The relation between statistics and probability theory developed rather late, however.

In probability theory and statistics, the median is a number.

Quantitative analysts are going to use a little more probability theory.

Risk associated with project outcomes is usually handled using probability theory.