Presentation of Data — Economics STD 11 Commerce — Question

According to King, "One of the chief aims of statistical science is to render the meaning of masses of figures clear and comprehensible at a glance". This is often best accomplished by presenting the data in a pictorial (or graphical) form.
The shape of the graph gives an exact idea of the variations of the distribution trends. Graphic presentation, therefore, serves as an easy technique for quick and effective comparison between two or more frequency distributions. When the graph of one frequency distribution is superimposed on the other, the points of contrast regarding the type of distribution and the pattern of variation become quite obvious. All these advantages necessitate a clear understanding of the various forms of graphic representation of a frequency distribution.