A data analyst is a professional who collects, processes, and performs statistical analyses on large sets of data. They then use their findings to identify patterns, trends, and insights that can help businesses make informed decisions. The job of a data analyst involves:

1. Collecting and organizing large sets of data from various sources.

2. Cleaning and transforming data to ensure its accuracy and consistency.

3. Analyzing data using statistical methods and software tools.

4. Creating visualizations and reports to present insights and findings to stakeholders.

5. Collaborating with teams across the organization to identify business problems and propose solutions.

6. Continuously monitoring and evaluating data to identify trends, patterns, and anomalies.

7. Staying up-to-date with industry trends and best practices in data analysis.

To be a successful data analyst, you should have strong analytical skills, be proficient in statistical analysis software such as R or Python, and be able to communicate findings effectively to non-technical stakeholders. A bachelor's degree in a relevant field such as statistics, mathematics, computer science, or business analytics is typically required, and relevant work experience is preferred.