Q. 1 4.3( 11 Votes )

Find the median of the following data by making a 'less than ogive'.

Answer :

The frequency distribution table for ‘less than’ type is:

Lets plot a graph of ‘less than ogive’, taking upper limits of the class intervals on x - axis and cumulative frequencies on y - axis.

As we have N = 53 by the frequency table.

N/2 = 53/2 = 26.5

Mark 26.5 on y - axis and the corresponding point on x - axis would be the median.

The corresponding point on x - axis is 66.4.

Hence, median is 66.4

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