Q. 64.7( 6 Votes )

The annual profit

Answer :

More than method:

Now we mark,


On x-axis lower class limit and on y-axis Cumulative frequency


Thus, we plot graph as: (5,30); (10,28); (15,16); (20,14); (25,10); (30,7); (35,3)


Less than method:



Now we mark the upper class limit on x-axis and the cumulative frequency on y-axis. Thus, we plot the points: (10,2); (15,14); (20,16); (25,20); (30,23); (35,27); (40,30)


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