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(a) Statistics are aggregate of facts (b) Statistics must be numerically expressed. (c) Statistics are collected for a pre-defined purpose (d) Statistics should be collected in a systematic manner. (e) Statistics are placed in relation to each other.

Karl Pearson FRS FRSE (/?p??rs?n/; born Carl Pearson; 27 March 1857 ? 27 April 1936) was an English mathematician and biostatistician. He has been credited with establishing the discipline of mathematical statistics.

Prasanta Chandra Mahalanobis is also known as the father of Indian Statistics.

Sir Ronald Aylmer Fisher (1890-1962), renowned as "his time's greatest scientist," was a British statistician and biologist who made significant contributions to experimental design and population genetics. He is widely regarded as the "Father of Modern Statistics and Experimental Design."

Statistics is defined as the science of collecting, organizing, presenting, analyzing and interpreting numerical data for the purpose of assisting in. making a more effective decision. Classifications: Depending on how data can be used, statistics is sometimes divided in to two main areas or branches.

We begin by introducing two general types of statistics: Descriptive statistics: statistics that summarize observations. Inferential statistics: statistics used to interpret the meaning of descriptive statistics.

Sir Ronald Aylmer Fisher, a British polymath, is widely regarded as the father of modern statistics. Born on 17 February 1890 in East Finchley, London, England, his extensive work in the fields of mathematics, statistics, biology, genetics, and academia, laid the foundations for modern statistical science.