Notation in probability

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In probability theory and statistics, some special forms of mathematical notation are of interest :

• Random variables (e.g. the height of students) are written in upper case.
• Singular values are written in lower case (e.g. P( X = x ) can be the probability that a student is of height x).
• σ-algebras are usually written with upper case calligraphic (e.g. [\mathcal F] for the set of sets on which we define the probability P)
• [ N \choose k ] (N-choose-k) is defined as a number of ways in which one can select k objects from N objects, and is an alternative term for binomial coefficient. Also defined as combination without repetition in Combinations and permutations.

See also

• Glossary of probability and statistics
• Combinations and permutations

External links

• Choose notation[link]

 

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