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Data scientists are able to identify and solve the most valuable problems for the company, not just the business problems they tackle. Data scientists use experimentation to uncover new insights from large data sets. Business analysts use self-service analytics tools to analyze selected data sets and create reports and visualizations. Data scientist must also have a strong business sense and be able to communicate data-driven insights with business stakeholders. Data scientists must be fluent in several common programming languages, such as Java and Python. They use advanced machine learning models to automate previously inefficient or slow processes.