Graphs are useful to present a sets of data in a visually appealing way whilst still containing all the information. Last week in the Skewed Statistics series, we looked at correlation and causation, a topic which often includes graphs. We saw then how data can be manipulated to imply causation. Graphs, too, are easily manipulated. Sometimes this is to make the data easier to read or understand. Other times this manipulation can mislead. It is important to know how graphs are used and abused.
Let's be curious and ask, 'how are graphs manipulated?'
