True or False: Evaluation context determines the data subset for calculations in DAX.

The statement is true because evaluation context in DAX (Data Analysis Expressions) plays a critical role in determining how expressions are calculated and which data is included in those calculations. Evaluation context consists of two main components: row context and filter context.

Row context refers to the current row being evaluated in a calculation, allowing the formula to access the data in that specific row. Filter context, on the other hand, applies filters to the data model before a calculation is performed, dynamically changing the data subset used in DAX calculations.

When dealing with DAX, understanding how evaluation context influences the outcome is essential, as it directly affects the data being referenced during calculations and how results are aggregated. Therefore, saying that evaluation context determines the data subset for calculations is accurate. This fundamental concept is crucial for users to master in order to create effective measures and calculations in Power BI.

The other options imply inaccuracies about the role of evaluation context in DAX calculations, which can lead to misunderstandings about how to work with data effectively in analysis scenarios.