It depends upon the demand of the situation whether we are interested in finding the average marks obtained by the students or the marks obtained by most of the students
What do we find in the first situation?

Find the mean of the marks obtained by 30 students of class IX of a school. The marks are

Find the mean, median, and mode of marks obtained by 20 students in an examination. The marks are given below.

The marks obtained by a student in different subjects are shown. Draw a pie diagram showing the information.

Find the mean marks of the student from the following cumulative frequency distribution .

Arathi took 3 examinations in a year. The marks obtained by her in the second and third examinations are more than 5 and 10 respectively than in the first examination. If her average mark is atleast 80, find the minimum mark that she should get in the first examination.

The following pie chart gives the marks scored in an examination by a student in various subjects . If the total marks obtained by the student were 360 , answer the questions. Find the marks obtained in each subject.

The following pie chart gives the marks scored in an examination by a student in various subjects . If the total marks obtained by the student were 360 , answer the questions. which subject he get the least marks ?

In a class of 100 students there are 70 boys whose average marks in a subject are 75. If the average marks of the complete class is 72, then what is the average of the girls?