Answer :

(i)


(ii)



To draw less than type ogive, we plot the points (0, 0), (20, 6), (40, 17), (60, 34), (80, 46), (100, 50), join all these points by free hand.


Now, N/2 = 50/2 = 25



Taking Y = 25 on Y - axis and draw a line parallel to X - axis, which meets the curve at point A. From point A, we draw a line perpendicular to X - axis, where this meets that point is the required median i.e., 49.4.


(iii) Now, N/2 = 50/2 = 25


Which lies is the interval 40 - 60.






= 40 + 9.41


= 49.41


(iv) Yes, median distance calculated by parts (ii) and (iii) are same.


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