CHAVES LM, SOUZA DJ de. AN ELEMENTARY PROOF OF FISHER-COCHRAN THEOREM USING A GEOMETRICAL APPROACH. Braz. J. Biom. [Internet]. 2019 Sep. 26 [cited 2024 May 7];37(3):372-7. Available from: http://www.biometria.ufla.br/index.php/BBJ/article/view/405