Q. 14.3( 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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