%0 Journal Article %A Slavtchova-Bojkova, Maroussia %A Grigorova, Denitsa %A Kamenov, Emil %T Data analysis and graphics using software %J Mathematics and Education in Mathematics %D 2020 %P 265-268 %V 49 %I mathdoc %U http://geodesic.mathdoc.fr/item/MEM_2020_49_a30/ %G bg %F MEM_2020_49_a30