What characterizes a report in Power BI?

A report in Power BI is characterized by a collection of visualizations based on one or more datasets. This allows users to present and analyze their data through various graphical representations, such as charts, graphs, and tables, all in one coherent format. Each visualization within the report can provide insight into different aspects of the data, enabling users to interpret and analyze complex information effectively.

In Power BI, reports can incorporate multiple visualizations that are linked to the same dataset, allowing for a comprehensive view of the data from different perspectives. This versatility in visual representation is what makes reports a powerful tool for data analysis and communication.

The other choices don't encapsulate the essence of a Power BI report; datasets alone do not visualize information, a single visualization does not provide the comprehensive insight needed for thorough analysis, and a summary table of statistics, while useful, does not represent the broader capability of a report to include multiple visual aspects.