%0 Journal Article %A Kelevedjiev, Emil %T Multiple choice questions exam. Has the student guessed the answer by chance? %J Mathematics and Education in Mathematics %D 2022 %P 172-177 %V 51 %I mathdoc %U http://geodesic.mathdoc.fr/item/MEM_2022_51_a13/ %G bg %F MEM_2022_51_a13