The structure of data Data is everywhere and it can be stored in lots of ways. Two general categories of data are: Structured data: Organized in a certain format, such as rows and columns. Unstructured data: Not organized in any easy-to-identify way. For example, when we rate our favorite restaurant …

Selecting the Right Data When we’re analyzing data, it’s important to consider how we collect it. Here are some things to keep in mind: How the data will be collected Decide if we’ll gather the data ourself or get it from someone else (and maybe buy it). When we collect the data …