Data science is a multidisciplinary field that uses scientific methods, processes, algorithms, and systems to extract insights and knowledge from structured and unstructured data. It involves collecting, analyzing, and interpreting large amounts of data to identify patterns, trends, and correlations that can be used to make informed decisions and predictions. Data science combines techniques from statistics, mathematics, computer science, and domain knowledge to address complex problems and derive actionable insights from data. This field has applications in various industries, including finance, healthcare, marketing, and technology.