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Calcula el V de Cramér: chi^2 = 20 , n = 200 , tabla 3 * 4 (luego \min(r-1,c-1) = 2 )
Calcula el V de Cramér: chi^2 = 20 , n = 200 , tabla 3 * 4 (luego \min(r-1,c-1) = 2 )
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