A data set is a collection of related information organized in a structured format, often in rows and columns. Each row typically represents a single record or observation, while each column contains a specific attribute or variable related to that record. For example, a data set about students might include columns for name, age, and grade. Data sets can be used in various fields, such as statistics, machine learning, and data analysis. They help researchers and analysts identify patterns, make predictions, and draw conclusions based on the information contained within them. Properly organized data sets are essential for effective data management and analysis.