Question

find the mean of the following frequency distribution using step deviation method class 0-10 10-20 20-30 30-40 40-50 frequency 7 12 13 10 8

Answer 1

This is the answer and hope you like it

Answer 2

Answer:

XI. FIXI 35 . 180 . 325 .350 .360 = 1250 ☮

5

15. Dixit+÷ fi = 1250 / 50 = 25 ans

25

35

45