1. (a) State the difference between Natural sale and Ration scale.
(b) What purpose is served by a semi-logarithmic graph paper?
(b) Explain a pictogram.
2. (a) Define an Ogive and how to obtain the value of median · graphically.
(b) Illustrate graphically the distinction between aftcquency polygon.
A histogram and ogive curve. Comment on their uses.
(c) Define angular diagram. Discuss the usefulness of diagrammatic representation of facts.
(d) Explain and illustrate a Histogram.