How do data analysts vary from business analysts or data scientists?

The following are some similarities among data scientists, business analysts, and data analysts:

Data scientists make decisions based on the provided data, business analysts examine historical data, and data analysts analyze business requirements in terms of skill set. While business analysts develop, build, evaluate, and report on business capabilities, data analysts carry out the whole life cycle of data analysis. Conversely, data scientists use statistical analysis to create machine-learning systems.