there are 80 students in a math class.20% of the students in the class scored above 50 marks in the test. what is the average of those students who scored below 50 marks

What are "50 marks"?

The average (mean) of the remaining 80% of students cannot be determined without more information.

To find the average of students who scored below 50 marks, we need to subtract the number of students who scored above 50 marks from the total number of students in the class.

First, we calculate the number of students who scored above 50 marks:
20% of 80 = (20/100) * 80 = 16

Next, we subtract the number of students who scored above 50 marks from the total number of students in the class:
80 - 16 = 64

Therefore, there are 64 students who scored below 50 marks.

To find the average of these students, we need to sum up their scores and divide it by the number of students.

If we assume that all students scored uniformly below 50 marks, we can use the average formula:
Average = Sum of scores / Number of students

Since we don't have the individual scores, we can assume that the students who scored below 50 marks got the minimum possible score of 0. Therefore, the sum of their scores will be 0.

Average = 0 / 64 = 0

Therefore, the average of those students who scored below 50 marks is 0.

To find the average of the students who scored below 50 marks, we need to know the number of students who scored above 50 marks and their average marks.

Given that there are 80 students in the math class and 20% of them scored above 50 marks, we can calculate the number of students who scored above 50 marks:

Number of students who scored above 50 marks = (20/100) * 80 = 16.

Now, to find the average of the students who scored below 50 marks, we need to subtract the number of students who scored above 50 marks from the total number of students in the class:

Number of students who scored below 50 marks = 80 - 16 = 64.

However, we don't have the actual marks of each individual student. Without the specific marks, we cannot calculate the average of the students who scored below 50 marks.