Question

how to calculate average marks of a class in a subject​

Answer 1

Answer:

1.Add all the marks obtained by the student

2.Then divide it by the number of students

Answer 2

Average

• Arithmetic mean or average is the most popular and widely used measure of Central tendency

• It is estimated by adding the given observation and then by dividing it with the number of observation

• In grouped frequency distributions you are expected to multiply by given frequency to the corresponding observation or the class mark as the case of class interval.

• Arithmetic mean or average depends on the change of scale and change of origin.

• Arithmetic mean is precise and exact .lt is easy to compute and has a determinate value.

• Average generally attached point of balance