Economy, asked by Prashantkumar2413, 5 months ago

Calculate average marks of students by short-cut method.
Marks 10 20 30 40 50
No. of students 15 10 40 20 15

Answers

Answered by lram5731
1

Answer:

The following table shows the marks scored by 140 students in an examination of a certain paper:

Marks:0-1010-2020-3030-4040-50Number of students:2024403620Calculate the average marks by using all the three methods: direct method, assumed mean deviation and shortcut method.

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