Chebyshev, Pafnuty (1821 - 1894)

Chebyshev was a Russian mathematician who worked in the area of probability, statistics, and number theory. He is best known for Chebyshev's theorem which gives a lower bound on the proportion of data within k standards of the mean.

Stamps

Stamp	Description
	Russia, 30k, 1946 Scott: 1050 A584
	Russia, 60k, 1946 Scott: 1051 A584