Q. 8

From the following frequency distribution, prepare the 'more than' ogive.


Also, find the median.

Answer :

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


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



As we have N = 230 by the frequency table.


N/2 = 230/2 = 115


Mark 115 on y - axis and the corresponding point on x - axis would be the median.



The corresponding point on x - axis is 590.


Hence, median is 590.


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