The duties and responsibilities of a data analyst include more than collecting and analyzing data. They also have to make this data accessible to those who need the information to streamline business processes. In general, the day-to-day activities of a data analyst may include the following:

• Using data mining to extract information from data sets and identify correlations and patterns 
• Organizing and transforming information into comprehensible structures
• Using data to predict trends in the customer base and the consumer population as a whole
• Performing statistical analysis of data
• Using tools and techniques to visualize data in easy-to-understand formats, such as diagrams and graphs
• Preparing reports and presenting these to management or clients
• Identifying and recommending new ways to save money by streamlining business processes
• Monitoring data quality and removing corrupt data
• Communicating with stakeholders to understand data content and business requirements