Answer to Question #262914 in Economics for nysha

Question #262914

calculate mean marks

marks. no of students

0-10. 20

10-20. 24

20-30. 40

30-40. 36

40-50. 20

Expert's answer

Class interval Mid value (x₁) Frequency (f₁) f₁x₁

0-10 5 20 100

10-20 15 24 360

20-30 25 40 1000

30-40 35 36 1260

40-50 45 20 900

N = 140 Sum f₁x₁= 3620

Mean = 3620 / 140 = 25.857

Learn more about our help with Assignments: Economics

No comments. Be the first!

Who Can Help Me with My Assignment

There are three certainties in this world: Death, Taxes and Homework Assignments. No matter where you study, and no matter…
How to Finish Assignments When You Can’t

Crunch time is coming, deadlines need to be met, essays need to be submitted, and tests should be studied for.…
How to Effectively Study for a Math Test

Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…