Data analysis is the process of examining, transforming, and modeling data in order to extract meaningful insights, draw conclusions, and make informed decisions. It involves collecting and cleaning raw data, identifying patterns and relationships, and using statistical and computational methods to analyze the data and uncover important insights. The process of data analysis can be used to answer specific questions, make predictions, identify trends, or simply gain a better understanding of a particular phenomenon or system. Data analysis is used in a wide range of fields, including business, science, healthcare, finance, and many others.