Why we use tally marks?Is it compulsory?

By Aswin

Tally marks are used in tally charts which are used to maintain and count the number of observations in very little time without any error. They are used for interpreting and comparing data.

We arrange any data in tabular form using tally marks to obtain particular information in very little time.
In order to understand the concept of tally marks, let us arrange the following data using tally marks. The given data represents the number of blood donors of different blood groups in a blood donation camp.

Now it is clear to you that using tally marks it is quite easy for anyone to read and interpret the data.



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