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: - Mathematics

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:

1) Highest and the lowest marks obtained by the students.

2) Range of the marks obtained.

3) Mean marks obtained by the group.

The marks obtained by the group of students in a science test can be arranged in an ascending order as follows.

39, 48, 56, 75, 76, 81, 85, 85, 90, 95

1) Highest marks = 95

Lowest marks = 39

2) Range = 95 − 39

= 56

3) Mean marks = `(85+ 76+90+85+39+48+56+95+81+75 )/10`

= `730/10 = 73`

Is there an error in this question or solution?

Chapter 3 Data Handling
Exercise 3.1 | Q 6 | Page 63