Q. 23.5( 79 Votes )

The table below s

Answer :

total no. of children = 40

the median is the mean of marks of 20th and 21st child.

both lies in the range of 20-30.

let’s assume a uniform distribution of marks.

i.e., 14th child has 20 marks and 15th child has 20 + marks.

marks of 15th child =

marks of 20th child =

marks of 20th child = 25

also, marks of 21st child =

median =

median =

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