Pearson's paper of 1900 introduced what subsequently became known as the chi-squared test of goodness of fit. The terminology and allusions of 80 years ago create a barrier for the modern reader, who ...

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Helen Pearson, 97, of Lexington, passed away peacefully on Sunday, June 15, 2025, at Kendal at Lexington. Helen was born on June 7, 1928, in Drayton, Ontario, Canada, the daughter of Hazel May Cadwell ...