The marks obtained by 12 students of a class in the test are:
36, 27, 5, 19, 34, 23, 37, 23, 16, 23, 20, 38
By arranging the marks in ascending order, we have;
5, 10, 19, 20, 23, 23, 23, 34, 36, 37, 38
In the given data 23 occurred the maximum number of times,
So, the model mark = 23