visualising-data-course

8: Use good data

Good data is data that is collected, cleaned and tested carefully and thoroughly.

When you build a chart, it’s worth doing some quick checks that

• numbers are in the right ballpark.
• numbers are consistent. For example, do percentages in pie charts add to 100%?

(Contra) Example

This is a contra example: Which survey on best places in UK to retire?

Source: Best places to retire in the UK revealed - Which? News