Answer question number 17 16.
Calculate the mean devotion about the rnean for the followtng frequency
0-4 4-8 8-12 12-16 16-20
2
Calculate the an of the follow-mg data
6-12 18.24 24-30
interval , O O
for the
13 '14 IS 116
2 '3' 4 s' 6 s 910
6 s 822'0210001
