two methods of presenting data 1.tabular form 2.pictorial form
questionnaires with boxes to tick open questions or closed questions
Tables and Graphs. Audio-visual is just one way.
There are numerous ways of presenting data. But if you have to narrow it two alternatives, I can only assume that they would be written and visually. A properly prepared scientific report uses both a...
notebook..
Different ways to gather data include: Survey Telemarketing Web search Historical analysis