Question

The Marks (out of 100) obtained by a group of student in a mathematics test are 67, 75, 49, 81, 79,73, 92,
66, 72 and 56. Find the:
(i) Highest and the lowest marks obtained by the students
(ii) Range of the marks obtained.
(iii) Mean marks obtained by the group.

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Answer 1

Step-by-step explanation:

total marks out of hundred

group of 10 students

1. highest and lowest marks obtained by the students

= highest marks obtained by the students is 92. and the lowest marks obtained by the students is is 49.

2. range of the marks obtained

= highest marks - lowest marks

= 92 - 49

= 43

3. mean marks obtained by the group

= the total marks obtained by the students

= number of students in the group

= 67+75+49+81+79+73+92+66+72+56

10

= 710

10

= 71

I hope it will help you.