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Wagner S. Tassinari
Departamento de Matemática
Universidade Federal Rural do Rio de Janeiro.
BR-465, Km 7 - Seropedica, RJ - Brasil
CEP: 23890-000
Skype: wagner.tassinari
wtassinari@gmail.comtassinari@ufrrj.br-------------------------------------------------------
"Statistical thinking will one day be as necessary for efficient citizenship as the ability to read and write." (H.G.Wellis)