Pafnuty Chebyshev Guide, Meaning , Facts, Information and Description

Pafnuty Lvovich Chebyshev (Пафнутий Львович Чебышёв) (May 4 1821 - November 26 1894) was a Russian mathematician. His name is also transliterated as Chebyshov, Tchebycheff or Tschebyscheff (old german transcription).

He was a student of Nikolai Brashman. His own most illustrious student was Andrei Markov.

He is known for his work in the field of probability and statistics. Chebyshev's inequality says that the probability that the outcome of a random variable is more than a standard deviations away from its mean is no more than 1/a²:

Chebyshev's inequality is used to prove the weak law of large numbers and the Bertrand-Chebyshev theorem (1845|1850).

The Chebyshev polynomials are named in his honor.

In electronics and signal processing, the family of electronic filters named "Chebyshev filters" are named after him.

See also

• Bienaymé-Chebyshev inequality - (1853|1866)
• Chebyshev polynomials

External link

• MacTutor biography

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