1620 A.D. - 1674 A.D.

Published the first work of important statistics.

1623 A.D. - 1662 A.D.

Helped Fermat solve the dice problem (how many times one must throw a pair of dice before one expects a double six).

1623 A.D. - 1687 A.D.

Developed the use of simple averages.

1655 A.D. - 1705 A.D.

Wrote and published papers on probability. He also developed the Bernoulli trials (success or failure).

1749 A.D. - 1827 A.D.

Wrote the Analytical Theory of Probabilities. This consisted of two books; generating functions and approximations and defining probability.

1777 A.D. - 1855 A.D.

Wrote papers on statistical methods such as the least squares method.

1796 A.D. - 1874 A.D.

Wrote a paper on the laws of birth vs. mortalities.

1822 A.D. - 1911 A.D.

Pioneer of statistical correlations and regression.

1857 A.D. - 1936 A.D.

Known as the father of Statistics. He developed the Chi-Square test.

1876 A.D. - 1937 A.D.

Developed the t-test (to handle small sample quantities for quality control).

1890 A.D. - 1962 A.D.

Contributed majorly to experimental design and analysis.