Question

Find the out Arithmetic,mean, media, mode, of the following distribution

marks less than 10/20/30/40/50/60
frequency 6/14/29/41/46/50​

Answer 1

Answer:

Marks(I)

10-20

20-30

30-40

40-50

50-60

60-70

70-80

x

i

15

25

35

45

55

65

75

f

i

3

7

10

6

8

2

4

f

i

x

i

45

175

350

270

440

130

300

x

ˉ

=

∑f

i

∑f

i

x

i

=

40

1710

=42.75