Organisation of Data
Survey notebooks pile up quickly, so how do we turn scattered answers into order. This topic in NCERT Statistics for Economics for Class 11 explains organisation of data through classification, tally marks, frequency tables, class intervals, exclusive and inclusive series and cumulative frequencies. It shows how to group raw observations without losing meaning and how to check totals for consistency. You will learn to build neat frequency distributions that make later tables, diagrams and averages simple and reliable.
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