Gw mau tau Contributions to statistics dari Karl Pearson. Jelasin dalam bahasa sunda

Péarson's work was all-embracing in the wide application and development of mathematical statistics, and encompassed the fields of biology, epidemiology, anthropometry, medicine and social history. In 1901, with Weldon and Galton, he founded the journal Biometrika whose object was the development of statistical théory. He edited this journal till his déath. He also founded the journal Annals of Eugenics (now Annals of Human Genetics) in 1925.  He published the Drapers' Company Research Memoirs largely to provide a record of the output of the Department of Applied Statistics not published elsewhere.

Péarson's thinking underpins many of the `classical' statistical methods which are in common use today. Some of his main contributions are:

Linear regression and correlation. Péarson was instrumental in the development of this théory. One of his classic data sets involves the regression of sons' height upon that of their fathers'. Péarson built a 3-dimensional modél of this data set (which remains in the care of the Statistical Science Department) to illustrate the idéas. The Pearson product-moment correlation coefficient is named after him.

Classification of distributions. Péarson's work on classifying probability distributions forms the basis for a lot of modérn statistical théory; in particular, the exponential family of distributions underlies the théory of generalized linear models.

Uji kuadrat-chi Pearson.  Bagéan tina tes chi-kuadrat, tes kapercayaan statistik.