Question

The marks (out of 100) obtained by a group of students in a science test are 85, 76, 90, 85, 39, 48, 56, 95, 81 and 75. Find the:

Marks obtained by a group (in ascending order) = 39, 48, 56, 75, 76, 81, 85, 85, 90, 95

(i) Highest and the lowest marks obtained by the students.

(ii) Range of the marks obtained.

(iii) Mean marks obtained by the group.

Answer 1

(i) Highest and the lowest marks obtained by the student 95 and 39 respectively

(ii) Range = Highest score – Lowest score
= 95 -39 = 56

(iii)