Question

Find the value of x and y if the median of data is 28.5 class| 0-10 | 10-20| 20-30 | 30-40| 40-50| 50-60 | frequency| 5 | x |20|15| y |5|

Answer 1

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Answer 2

median =l+(n/2 -c.f)/f×h
28.5=20+(30/2-(5+x))/20×10
28.5=20+25-x/20×10
28.5=40+25-x/2
28.5×2=65-x
57=65-x
x=8

45+x+y=60
45+8+y=60
y=60-53
y=7