Question

From the table given below calculate the mean mark:
Marks: 10, 20, 30,40, 50, 60
No. of students: 6, 3 ,6, 7, 4, 4

Answer 1

Answer:

34

Step-by-step explanation:

Total students = 6+3+6+7+4+4 = 30

Total marks

= 10×6 + 20×3 + 30×6 + 40×7 + 50×4 + 60×4

= 60 + 60 + 180 + 280 + 200 + 240

= 1020

Mean marks = 1020/30 = 102/3 = 34

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