Find the median for the following data :

Explanation

Construct the following table from the given data :

HereN=50
`rArr (N)/(2)=(50)/(2)=25`
`:.` Median class in 30-40
Now, `l_(1)=30,l_(2)=40,i=40-30=10,f=13,C=22`
and median `:. "M=l_(1)+(((N)/(2)-C))/(f)xxi`
`=30+((25-22))/(13)xx10=32.31`