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Karl Pearson

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Karl Pearson was a mathematician who changed how we use numbers to understand the world.

Portrait of Karl Pearson
Portrait of Karl Pearson

He is often called the founder of modern statistics. Statistics is a way of using math to study data and patterns. Pearson helped turn this into its own special subject of study. In 1911, he started the very first university statistics department. This department was located at University College London. His work helped people use math to study things like weather and biology.

Pearson was a very curious student who studied many different things. He first studied math at King's College in Cambridge. Then he traveled to Germany to learn about physics and other subjects. He studied Roman Law and even German literature. He spent many years living in cities like Berlin and Vienna. He even studied how people wrote about religion and history. This wide range of learning helped him think about many different problems. He used these different ideas to build his math theories.

Much of Pearson's work came from his time working with others. He was a student and a biographer of a man named Francis Galton.

Karl Pearson; Sir Francis Galton
Karl Pearson; Sir Francis Galton

Pearson wrote a huge three-volume biography about Galton's life. He even used his own money to help print the books. Later, he worked with a scientist named Walter Weldon. Weldon helped Pearson apply math to the study of living things. This partnership helped Pearson grow the field of biometry. These collaborations were very important for the history of science.

Pearson also had very strong and controversial beliefs. He was a supporter of eugenics and social Darwinism. These ideas were used to argue that some groups of people were better than others. Today, his thoughts are described as scientific racism. He believed that nations should be made of certain types of people. He even spoke against Jewish immigration to Britain. These views were harmful and are not accepted by scientists today. Because of his political views, he refused to accept a knighthood from the king.

Even though his ideas were controversial, his math reached many people. A young Albert Einstein even read Pearson's book called The Grammar of Science.

Portrait of Karl Pearson
Portrait of Karl Pearson

Pearson wrote that the laws of nature depend on how people observe them. He thought about very big ideas like time and the fourth dimension. He believed that science is a way for the human mind to organize information. His work helped connect math to how we see the world. He died in Surrey, England, in April of 1936.

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File:Karl Pearson; Sir Francis Galton.jpg
Karl Pearson; Sir Francis Galton.jpg
File:Portrait_of_Karl_Pearson.jpg
Portrait_of_Karl_Pearson.jpg
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