A Dot Plot is a graphical display of data using dots.
Example: Minutes To Eat Breakfast
A survey of "How long does it take you to eat breakfast?" has these results:
Which means that 6 people take 0 minutes to eat breakfast (they probably had no breakfast!), 2 people say they only spend 1 minute having breakfast, etc.
And here is the dot plot:
Another version of the dot plot has just one dot for each data point like this:
This has the same data as above:
But notice that we need to have lines and numbers on the side so we can see what the dots mean.
We can use dot plots for percentages, too:
Example: Access to Electricity across the World
Some people don't have access to electricity (they live in remote or poorly served areas). A survey of 102 countries had these results:
|Access to Electricity
(% of population)
So there were 5 countries where only 10% of the people had access to electricty, and so on.
Here is the dot plot:
Percent of Population with Access to Electricity