find the median of following distribution,class :0-10,10-20,20-30,30-40,40-50 and no of students is 2,12,22,8,6
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Class Interval Frequency(fi)Mix Value Fixi
Step-by-step explanation:
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
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