Question

From the following data compute Arithmetic mean and Median
Marks
0-10 10-20 20-30 30-40 40-50 50-60 No. of
Stud: 5 10 25
30
20 10​

Answer 1

Answer:

Answer

Marks Midpoint (x) No. of students (f) fx

0−10

10−20

20−30

30−40

40−50

50−60 5

15

25

35

45

55 5

10

25

30

20

10 25

150

625

1050

900

550

∑f=100 ∑f(x)=3300

x

=

∑f

∑f(x)

=

100

3300

=33

∴ Mean =33