It is customary to represent a unit value of the data by a standard symbol or a picture and the whole quantity by an appropriate number of repetitions of symbol concerned.
Example shown above. In October 2 bars of ice creams were sold, In June 3 scoop and a quarter were sold. In November 1 and half bars of ice creams were sold and so on.
·It is a popular device for presentation
·It is attractive, and have strong visual impact
DISADVANTAGES
·It can only show simple information.
· Any number or quantity less than that represented by an isotope has to be represented by a fraction of it, and this is not accurate.
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