# 1. Observe the information's in the following cumilative frequency table no. of days absent less than 5less than 10less than 15less than 20less than 25less than 30less than 35less than 40less than 45 No. of students 29 224 465 582 634 644 650 653 655 Q.. Draw a 'less than' ogive and 'more than' ogive to represent the above data .Q... Find median for the above data by interpreting the graph.Q...why regularity is essential in students life (VBQ)

 Class intervals Frequency Cumulative frequency less than cumulative frequency more than 0-5 29 less than 5  = 29 more than 0 = 655 5-10 195 less than 10 = 224 more than 5 = 626 10-15 241 less than 15 = 465 more than 10 = 431 15-20 117 less than 20 = 582 more than 15 = 190 20-25 52 less than 25 = 634 more than 20 = 73 25-30 10 less than 30 = 644 more than 25 = 21 30-35 6 less than 35 = 650 more than 30 = 11 35-40 3 less than 40 = 653 more than 35 = 5 40-45 2 less than 45 = 655 more than 40 = 2

For less than Ogive, we plot the following points :
(5,29); (10, 224); (15, 465); (20, 582); (25, 634); (30, 644), (35, 650); (40, 653) and (45, 655).
For more than Ogive, we plot the following points :
(0,655);(5,626); (10,431); (15,190); (20,73); (25,21); (30, 11); (35,5) and (40, 2). From the intersection of two Ogives, we draw a perpendicular on x - axis, that meets x-axis at 12.15.

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