Q. 95.0( 1 Vote )

The ages (in years) of 360 patience treated in a hospital on a particular day are given below.


Draw a histogram and a frequency polygon on the same graph to represent the above data.

Answer :

We take imagined class 0 – 10 and 70 – 80, each with frequency zero. The class marks of above classes are 5 and 75 respectively.


So, we plot the points A (5,0) and B (75,0). We join A with the midpoint of the top of the first rectangle and B with the mid-point of the last rectangle.


Thus we obtain a complete frequency polygon,



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