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The following data indicates marks of 53 students in a test.


Marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80
No. of Students 5 3 4 3 4 7 9 7

Draw a “Less than Ogive curve” for the data.


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Considering upper boundaries on X-axis and LCF on Y-axis. 

We plot the points and by connecting on free hand we get less than type ogive as shown below graph.

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