Math, asked by siriboutiquebly, 2 months ago

find median of the following data:- 1.class interval:- 0-10 , 10-20 ,20-30 ,30-40 ,40-50 , 50-60 2.frequency:- 5,8,20,15,7,5​

Answers

Answered by narendradongare2
2

ClassInterval Frequency c.f. 0−20 6 6 20−40 8 14 40−60 10 24 60−80 12 36 80−100 6 42 100−120 5 47 120−140 3 50  N=50  Here, N=50, then 2N=250=25

∴  Median class =60−80

We have, l=60,c.f=24,f=12 and h=20

Median=l+f2N−c.f×h

                =60+1225−24×20

                =60+1.66

                =61.66

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