What is the final step in the process of working with statistical data?

Analysis and interpretation of data

The correct answer is option 4: Analysis and interpretation of data

Statistics involves collection of data. The next step is to present the data in tabular, diagrammatic and graphic forms. The data, then, are summarised by calculating various numerical indices, such as mean, variance, standard deviation, etc., that represent the broad characteristics of the collected set of information. Finally, the data are analysed and interpreted.