1.

Calculate the mean for the following frequency distribution: Marks 10 - 20 20 - 30 30 - 40 40 - 50 50 - 60 60 - 70 70 - 80 Frequency 3 7 10 6 8 2 4

Answer»

Calculate the mean for the following frequency distribution:



























Marks

10 - 20

20 - 30

30 - 40

40 - 50

50 - 60

60 - 70

70 - 80

Frequency

3

7

10

6

8

2

4




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