The median of 24, 120, 15th is...
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Class IntervalFrequencymidpoint (x)Comm frequecy0-64346-12x94+x12-185159+x18-24y219+x+y24-3012710+x+yTotal20
∑f=20
x+y=10−−−−−−−−−−(1)
Median is 14.4
S0, Median class is 12−18
Median =L+f2n−C×w
So 14.4=12+5220−(4+x)×6
14.4×5=60+(10−4−x)×6
72=60+60−24−6x
6x=120−24−72
6x=120−96
6x=24
x=4
from eq (1)
4+y=10⇒y=6
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