Data analysis is a process that involves using statistical and computational methods to analyze, interpret and draw insights from data. It includes various techniques such as data cleaning, data visualization, regression analysis, clustering, classification, and other predictive modeling algorithms. The goal of data analysis is to extract useful information from the raw data and convert it into an understandable format for decision making or further processing. Data analysis can be applied in a wide range of fields such as business, science, healthcare, finance, and social sciences among others.