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Question -

The marks scored by 750 students in an examination are given in the form of a frequency distribution table:
 
Prepare a cumulative frequency table by less than method and draw on ogive.



Answer -


Take marks along ,t-axis and no. of students (c.f) along 3 -axis. Now plot the points (640, 16), (680, 61), (720, 217), (760, 501), (800, 673), (840, 732) and (880, 750) on the graph and join them with free hand. This is the less than ogive.

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