find the mean CI =0-10 ,10-20,20-30,30-40,40-50 . frequency 5,18,15,16,6 ?
Answers
Answered by
1
Answer:
ANSWER
Class Interval frequency (fi) Mid value fixi
0-10 12 5 60
10-20 16 15 240
20-30 6 25 150
30-40 7 35 245
40-50 9 45 405
N=∑fi=50 ∑fixi=1100
∴Mean=
∑fi
∑fixi
=
50
1100
=22
Similar questions