Question
A student draws a cumulative frequency curve for the marks obtained by 40 students of a class as shown below. Find the median marks obtained by the student of the class.
Solution
Here n = 40 
Locate 20 on the y-axis, From this point, draw a line parallel to the x-axis. The point of intersection of this perpendicular with the x-axis gives the median of the data.
Hence, the median marks obtained by the student of the class = 54 marks.
