Ronald A. Fisher
Ronald A. Fisher was born on February 17, 1890 in East Finchley, London England to George and Katie Fisher. Fisher had a happy child hood with his 3 sisters and older brother. His mother died when he was 14. Months after his mother died his father lost his business for making invalid transactions.
Fisher amazed people with his abilities of answering problems with out writing things down to check. He didn't have the best vision so he was tutored in math. He didn't have paper and pen to help so he had to visualize problems in geometrical terms. When he was 16 he won the Needle Medal, a competitive mathematics essay writing.
In 1909, Fisher won a scholarship to Gonville and Cauis College in Cambridge, where he studied mathematics and physics. Then in 1919 he was moved to research statistician at the Rothamsted Experimental Station in Hertfordshire. His task was to analysis and reinterpretation of a 66-years of records of continuous agricultural experiments and meteorological data. When he was doing his job he found statistical techniques and gave out the idea of the new outlook in Statistical Methods for Research Workers in 1925. This was later to become the bible of applied statistics.
Hypothesis testing was the main theme of Fisher's work in statistics. Fisher came up with the basic "no effect" situation the null hypothesis, which experiment is designed to check. He then found out that the null hypothesis is untenable, if he was wise enough to text it at different levels of application then the experimentalist can go to make him quantitative estimates of the effect of the agent.
Fisher also transformed was the planning of experiments when an amount variation of results is to be expected and then a system of factors need to be taken into account. Fisher also developed schemes for the random amounts of subplots in ways that such nuisance factors are minimized without harm being done to the probabilistic model, ,which the hypothesis is testing.
Even though he did all that work on methodology of experimentation Fisher wrote and understanding of on the rationale of statistical inference and established the exact distribution of many important statistical functions. At the same timing of doing all of that work he was working on something of a different nature, the quantitative side of the theory of natural selection. After he then became the leader in the reconciliation of Darwinism and Mendelism. Then in 1930 he wrote his second book, which got published, The Genetical Theory of Natural Selection. When Gregor Mendel's experimental evidence of particulate inheritance and the subsequent fashioning of the theory of genes, there was an uneasy feeling that these ideas did not fit in with Charles Darwin's theory of natural selection. Fisher was the first one to take on the difficult mathematical problems and conceptual difficulties in this area. Fisher discovered the frequencies of particular genes in a given population will fluctuate under the influence of natural selection. In his book his also states his views on eugenics, which is a classic of population genetics.
An important sequence of Fisher's work on genetics was his practical and theoretical interest in human blood grouping. In 1935 he set up a blood grouping unit in London, and once the outcomes was the unraveling of the mode of inheritance of Rhesus groups.
In 1933, Fisher left Rothamsted and took on professorships in London and later at Cambridge University. Then in 1929 he was appoint to be a made a fellow in the Royal Society and was knighted in 1952. After his retirement he moved to Australia where he died on July 29, 1962.
Fisher amazed people with his abilities of answering problems with out writing things down to check. He didn't have the best vision so he was tutored in math. He didn't have paper and pen to help so he had to visualize problems in geometrical terms. When he was 16 he won the Needle Medal, a competitive mathematics essay writing.
In 1909, Fisher won a scholarship to Gonville and Cauis College in Cambridge, where he studied mathematics and physics. Then in 1919 he was moved to research statistician at the Rothamsted Experimental Station in Hertfordshire. His task was to analysis and reinterpretation of a 66-years of records of continuous agricultural experiments and meteorological data. When he was doing his job he found statistical techniques and gave out the idea of the new outlook in Statistical Methods for Research Workers in 1925. This was later to become the bible of applied statistics.
Hypothesis testing was the main theme of Fisher's work in statistics. Fisher came up with the basic "no effect" situation the null hypothesis, which experiment is designed to check. He then found out that the null hypothesis is untenable, if he was wise enough to text it at different levels of application then the experimentalist can go to make him quantitative estimates of the effect of the agent.
Fisher also transformed was the planning of experiments when an amount variation of results is to be expected and then a system of factors need to be taken into account. Fisher also developed schemes for the random amounts of subplots in ways that such nuisance factors are minimized without harm being done to the probabilistic model, ,which the hypothesis is testing.
Even though he did all that work on methodology of experimentation Fisher wrote and understanding of on the rationale of statistical inference and established the exact distribution of many important statistical functions. At the same timing of doing all of that work he was working on something of a different nature, the quantitative side of the theory of natural selection. After he then became the leader in the reconciliation of Darwinism and Mendelism. Then in 1930 he wrote his second book, which got published, The Genetical Theory of Natural Selection. When Gregor Mendel's experimental evidence of particulate inheritance and the subsequent fashioning of the theory of genes, there was an uneasy feeling that these ideas did not fit in with Charles Darwin's theory of natural selection. Fisher was the first one to take on the difficult mathematical problems and conceptual difficulties in this area. Fisher discovered the frequencies of particular genes in a given population will fluctuate under the influence of natural selection. In his book his also states his views on eugenics, which is a classic of population genetics.
An important sequence of Fisher's work on genetics was his practical and theoretical interest in human blood grouping. In 1935 he set up a blood grouping unit in London, and once the outcomes was the unraveling of the mode of inheritance of Rhesus groups.
In 1933, Fisher left Rothamsted and took on professorships in London and later at Cambridge University. Then in 1929 he was appoint to be a made a fellow in the Royal Society and was knighted in 1952. After his retirement he moved to Australia where he died on July 29, 1962.
"The University of Cambridge Eugenics Society from 1911-13 And1930-33 and Reasons for Its Ultimate Demise." The University of Cambridge Eugenics Society from 1911. N.p., n.d. Web. 17 Oct. 2012.
"Ronald Fisher." Wikipedia. Wikimedia Foundation, 14 Oct. 2012. Web. 17 Oct. 2012.
"Ronald Aylmer Fisher, Sir Biography." BookRags. BookRags, n.d. Web. 18 Oct. 2012.