Question

calculate the mean for the frequency distribution table given below by direct method
c.i. f
5-15. 4
15-25. 3
25-35. 6
35-45. 5
45-55. 2​

Answer 1

Answer:

5 - 15 - iiii

15 - 25 - iii

25 - 35 - iiii / i

35 - 45 - iiii/

45 -55 - ii