Who doesn't like pictures? Nobody! There's only one little thing we need to cover before we get to the good stuff, though:
Lists
One simple way to look at single-variable data is to write it down in an ordered list. This helps us see the highest and lowest values, count how many pieces of data there are, and get an idea of what the values are. However, since lists can become long and unwieldy, especially when we start writing down a list of all the places we've never been to outside of our home town, it can be helpful to use other methods of looking at data.