In question 2 above, the number of students who scored marks less than 4 is(A) 15 (B) 13 (C) 12 (D) 10

Dear Student

Option (D) is right.

First we have to arrange the marks (out of 10) obtained by 28 students in a Mathematics test.
0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 10, 10.
The number of students who scored marks less than 4 is 10.

Thanks