Is it a must to do tally sheet when doing data analysis and plot into graphs?
No, it is not a must to use a tally sheet when doing data analysis and plotting into graphs.
However, using a tally sheet can be helpful in certain situations, especially when dealing with categorical data or when collecting data manually. Tally sheets can make it easier to keep track of the frequency of different categories and can be used as a precursor to creating frequency tables or bar charts.
That being said, there are alternative ways to analyze and visualize data that do not necessarily require the use of tally sheets. For example, if you have already collected data in a spreadsheet or a database, you might be able to directly create graphs or use software tools for analysis.
Ultimately, the decision to use tally sheets or any other specific technique or tool will depend on the nature of the data, the goals of the analysis, and personal preference.