TY  - JOUR
AU  - Kelevedjiev, Emil
TI  - Multiple choice questions exam. Has the student guessed the answer by chance?
JO  - Mathematics and Education in Mathematics
PY  - 2022
SP  - 172
EP  - 177
VL  - 51
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MEM_2022_51_a13/
LA  - bg
ID  - MEM_2022_51_a13
ER  -