The median of the distribution given below 14.4 find the value of x and y sim of frequency 20
Class fre
0-6 4
6-12 x
12-18 5
18-24 y
24-30 1
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0-6. 4. 4
6-12. x. 4+x
12-18. 5. 9+x
18-24. y. 9+x+ y
24-30. 1 10+x+y
10+ x+y=20
X+y=10. -(1)
median of data is 14.4 soit must lies in class 12-18therfore n = 10, cf=4+X,f=5,l=12,h=6
put these value in this
median = l+{(n-cf).h/f}
you will get X put X in 1 equation
6-12. x. 4+x
12-18. 5. 9+x
18-24. y. 9+x+ y
24-30. 1 10+x+y
10+ x+y=20
X+y=10. -(1)
median of data is 14.4 soit must lies in class 12-18therfore n = 10, cf=4+X,f=5,l=12,h=6
put these value in this
median = l+{(n-cf).h/f}
you will get X put X in 1 equation
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