How many do we have?
The next important question we can ask ourselves is: how many things do we have? e.g. how many people did we survey? How many countries do we know things of? etc. This might seem simple, but for statistics, this is very important.
How do we get it? Simply count! In spreadsheets, this would be the formula =COUNT or =COUNTA.
In the data below: How many data points do we have?
163.1 162.2 210.5 201.0 188.7 182.6 153.0 173.5 146.6 148.0
10! Easy, isn’t it? Simply by counting and looking at our range, we already have valuable information! Let’s look at more.
