A data analyst is a professional who is responsible for analyzing data to uncover insights and inform decision-making. The specific responsibilities of a data analyst can vary depending on the industry and the organization. Basically, the data analytics services offered by freelancers must have some common tasks include:

• Collecting and cleaning data from various sources, such as databases, spreadsheets, and APIs.
• Exploring and visualizing data to gain a deeper understanding of its distribution, relationships, and patterns.
• Building predictive models to make predictions and forecast future trends.
• Creating reports and dashboards to communicate findings and insights to stakeholders.
• Interpreting results and making recommendations for decision-making.
• Collaborating with cross-functional teams, such as marketing, product, and engineering, to ensure that data-driven insights are integrated into business processes and decision-making.
• Staying up-to-date with new data analysis tools and techniques and continuously improving data analysis processes.

Data analysts must have strong problem-solving skills and be able to work with large and complex data sets. They must also have a deep understanding of the tools and techniques used in data analysis, such as data visualization software and statistical programming languages. Additionally, they must be able to communicate their findings and insights to stakeholders in a clear and concise manner.