This skill looks at specific characteristics of data that make it useful for decision making. You will learn about characteristics of data and datasets. Data can come in different types, like numeric values, dates, and strings. The type of data is important because it affects how the data can be processed. Datasets also come in different types. The structure of the dataset is important because it will influence how you can analyze the data. You'll learn about tidying up datasets, and structuring a dataset in a wide vs. a long format. You'll also learn about some basic visualizations that will help you know how the dataset can be used to help answer questions.