R. A FisherKeara Laessig

StatisticsMod 11890-1962

Childhood

Fisher was born in East Finchley in London, England, to George and Katie Fisher. He had a happy childhood, with three older sisters and an older brother. His mother died when he was 14. 18 months later his father lost his business.

School Years

When Fisher was 16 he won a competitive math contest at Harrow School. Although Fisher was a brilliant math student he was partially blind. He was tutored in math to see and solve arithmetic equations' in his head instead of on paper.

Cambridge University

After attending Gonville and Caius College, Cambridge, Fisher went on to develop the Cambridge University.

Contributions to StatisticsInvented maximum likelihood analysis of variancePioneered the design of experimentsOriginated Sufficiency Ancillary Fisher information

Definitions Maximum Likelihood- a method of

point estimation that estimates an unobservable population with parameter(s) that maximizes the likelihood function. Examples in our book

Pgs 320-321, 330, 357, 367

Taken from source 1

Definitions Continued Analysis of variance- (ANOVA) is a

collection of statistical models and their associated procedures which compare means by splitting the overall observed variance into different parts.

Examples in your book: Pgs 634-672

From Source 1

Definitions Continued The design of experiments- He described how to test the hypothesis that a certain

lady could distinguish by flavor alone whether the milk or the tea was first placed in the cup. While this sounds like a frivolous application, it allowed him to illustrate the most important ideas of experimental design:

Randomizations Replication Blocking Orthogonality use of factorial experiments instead of the one-factor-at-

a-time methodIn your book: All of chapter 1

Definitions Continued Sufficiency- There is no specific

definition for this term. The concept is just learned.

Learn it Online at- http://en.wikipedia.org/wiki/Sufficient_statistic

Or http://www.cscs.umich.edu/~

crshalizi/notabene/sufficient-statistics.html

Definitions Continued Ancillary- a statistic whose probability

distribution does not depend on which of the probability distributions among those being considered is the distribution of the statistical population from which the data were taken.

Learn about it online at: http://en.wikipedia.org/wiki/Ancillary_statistic

Orhttp://

www.ds.unifi.it/VL/VL_EN/point/point6.html From source 1

Definitions Continued Fisher information- the variance of the

score.

Examples in book:(Fishers Exact Test)Pg 614-615

From source 1

Recognition and other WorkIn 1929 Fisher was recognized by his peers

and was accepted into the Royal society.In 1943 Cambridge University Fisher was offered the Balfour Chair of Genetics.In 1952 Fisher was dubbed a Knight Bachelor

by Queen Elizabeth II.Aside from a statistician Fisher was also a

biologist. He wrote a book on the genetic theory of the Natural selection.

R. A. Fisher Summed Up Invented and Pioneered…. maximum likelihood analysis of variance the design of experiments Sufficiency Ancillary Fisher information Also made contributions in science. Won many awards and was recognized by

Queen Elizabeth II.

Sourses

http://www.fact-archive.com/encyclopedia/Ronald_Fisher

http://en.wikipedia.org/wiki/Ronald_Fisher

Statistics Book