Mathematics

Annals of Mathematical Statistics

The Annals of Mathematical Statistics was a peer-reviewed statistics journal published by the Institute of Mathematical Statistics from 1930 to 1972. It was superseded by the Annals of Statistics and the Annals of Probability. In 1938, Samuel Wilks became editor-in-chief of the Annals and recruited

Chris Chris
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Mathematics

AP Statistics

Advanced Placement (AP) Statistics (also known as AP Stat) is a college-level high school statistics course offered in the United States through the College Board's Advanced Placement program. This course is equivalent to a one semester, non-calculus-based introductory college statistics course and

Chris Chris
· · 5 min read
Actuarial science
Mathematics

Actuarial science

Actuarial science is the discipline that applies mathematical and statistical methods to assess risk in insurance, pension, finance, investment, psychology, medicine, and other industries and professions. Actuaries are professionals trained in this discipline. In many countries, actuaries must

Chris Chris
· · 10 min read
Mathematics

Arithmetic mean

In mathematics and statistics, the arithmetic mean ( arr-ith-MET-ik), arithmetic average, or just the mean or average is the sum of a collection of numbers divided by the count of numbers in the collection. The collection is often a set of results from an experiment, an observational study, or a

Chris Chris
· · 7 min read
Abstract algebra
Mathematics

Abstract algebra

In mathematics, more specifically algebra, abstract algebra or modern algebra is the study of algebraic structures, which are sets with specific operations acting on their elements. Algebraic structures include groups, rings, fields, modules, vector spaces, lattices, and algebras over a field. The

Chris Chris
· · 13 min read
100 prisoners problem
Mathematics

100 prisoners problem

The 100 prisoners problem is a mathematical problem in probability theory and combinatorics. In this problem, 100 numbered prisoners must find their own numbers in one of 100 drawers in order to survive. The rules state that each prisoner may open only 50 drawers and cannot communicate with other

Chris Chris
· · 13 min read
Algebraic geometry
Mathematics

Algebraic geometry

Algebraic geometry is a branch of mathematics which uses abstract algebraic techniques, mainly from commutative algebra, to solve geometrical problems. Classically, it studies zeros of multivariate polynomials; the modern approach generalizes this in a few different aspects. The fundamental objects

Chris Chris
· · 26 min read
68–95–99.7 rule
Mathematics

68–95–99.7 rule

In statistics, the 68–95–99.7 rule, also known as the empirical rule or 68–95–99.7 rule for a normal distribution and sometimes abbreviated 3sr or 3 σ, is a shorthand used to remember the percentage of values that lie within an interval estimate in a normal distribution: approximately 68%, 95%, and

Chris Chris
· · 6 min read
Mathematics

A Philosophical Essay on Probabilities

A Philosophical Essay on Probabilities (French: Essai philosophique sur les probabilités) is an 1814 work by Pierre-Simon Laplace presenting a wide-ranging account of the meaning of probability and the uses of the calculus of probabilities across the natural and moral sciences. The essay became one

Chris Chris
· · 3 min read