In any field, collecting data is very important. This is because it helps us learn more about a subject, like how important it is and what its future looks like. It also helps people make better decisions by making it easier to make decisions based on data. It helps us figure out where we need to pay more attention. It also helps us improve the ways and methods we use for a particular case. For example, if we want to do research on how well students are doing in math, we will collect information like how well students did in math in terms I and II from different classes. Data can be gathered for many different reasons, such as: For calculation For analysis of the data For making decisions To figure out what's going on