Question

24. Find Mean for the following frequency distribution by direct method.
CI 0 – 10 10 – 20 20 – 30 30 – 40 40 – 50
f 7 10 15 8 10

Answer 1

Answer:

0 – 10 5

10 – 20 15

20 – 30 25

30 – 40 35

40 – 50 45