Draw an ogive to represent the following frequency distribution:


Class-interval:



0-4



5-9



10-14



15-19



20-24



No. of students:



2



6



10



5



3


The given frequency of distribution is not continuous. So, we first make it continuous and prepare cumulative frequency distribution as under:


Class interval



No. of students



Less than



Cumulative frequency



0.5-4.5



2



4.5



2



4.5-9.5



6



9.5



8



9.5-14.5



10



14.5



18



14.5-19.5



5



19.5



23



19.5-24.5



3



24.5



26



Now we mark the upper class limits along x-axis and cumulative frequency along y-axis. Thus, we plot the points: (4,5,2); (9,5,8); (14,5,18); (19,5,23); (24,5,26)



3