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- 4 (four) is a number, numeral and digit. It is the natural number following 3 and preceding 5. It is a square number, the smallest semiprime and composite...88 KB (9,406 words) - 09:56, 8 August 2024
- 3 (three) is a number, numeral and digit. It is the natural number following 2 and preceding 4, and is the smallest odd prime number and the only prime...33 KB (3,261 words) - 11:49, 7 August 2024
- In statistics, the standard deviation is a measure of the amount of variation of a random variable expected about its mean. A low standard deviation indicates...55 KB (7,605 words) - 07:02, 24 July 2024
- Statistics (from German: Statistik, orig. "description of a state, a country") is the discipline that concerns the collection, organization, analysis,...78 KB (8,772 words) - 14:49, 1 August 2024
- 8 (eight) is the natural number following 7 and preceding 9. English eight, from Old English eahta, æhta, Proto-Germanic *ahto is a direct continuation...74 KB (7,953 words) - 11:04, 8 August 2024
- In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function...75 KB (11,265 words) - 19:54, 30 July 2024
- A number is a mathematical object used to count, measure, and label. The most basic examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers...62 KB (7,747 words) - 13:28, 30 July 2024
- 9 (nine) is the natural number following 8 and preceding 10. Circa 300 BC, as part of the Brahmi numerals, various Indians wrote a digit 9 similar in shape...44 KB (4,894 words) - 11:59, 7 August 2024
- In mathematics, a complex number is an element of a number system that extends the real numbers with a specific element denoted i, called the imaginary...89 KB (11,605 words) - 01:44, 21 July 2024
- In probability theory and statistics, variance is the expected value of the squared deviation from the mean of a random variable. The standard deviation...58 KB (10,078 words) - 11:09, 30 July 2024
- In number theory, Fermat's Last Theorem (sometimes called Fermat's conjecture, especially in older texts) states that no three positive integers a, b,...103 KB (11,486 words) - 14:18, 8 August 2024
- Public-key cryptography, or asymmetric cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a...36 KB (4,186 words) - 16:34, 18 July 2024
- Cryptography, or cryptology (from Ancient Greek: κρυπτός, romanized: kryptós "hidden, secret"; and γράφειν graphein, "to write", or -λογία -logia, "study"...98 KB (10,713 words) - 13:37, 29 July 2024
- In geometry, a polygon (/ˈpɒlɪɡɒn/) is a plane figure made up of line segments connected to form a closed polygonal chain. The segments of a closed polygonal...37 KB (4,287 words) - 18:20, 7 May 2024
- In probability theory and statistics, the Poisson distribution is a discrete probability distribution that expresses the probability of a given number...81 KB (11,246 words) - 21:10, 21 June 2024
- The median of a set of numbers is the value separating the higher half from the lower half of a data sample, a population, or a probability distribution...61 KB (7,802 words) - 17:14, 2 August 2024
- A census is the procedure of systematically acquiring, recording and calculating population information about the members of a given population. This term...53 KB (6,235 words) - 07:37, 8 August 2024
- A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned...20 KB (2,274 words) - 13:25, 7 June 2024
- Four-dimensional space (4D) is the mathematical extension of the concept of three-dimensional space (3D). Three-dimensional space is the simplest possible...44 KB (5,322 words) - 08:19, 27 July 2024
- In statistical modeling, regression analysis is a set of statistical processes for estimating the relationships between a dependent variable (often called...36 KB (5,081 words) - 16:47, 16 February 2024