You use the _______________ to exclude certain observations from your analysis.

The Filter Tool is specifically designed to exclude certain observations from the analysis in SAS Enterprise Miner. By applying various conditions and criteria, users can determine which records to include or exclude from the dataset being worked with. This is particularly useful for focusing on a subset of data that meets specific requirements, ensuring that the analysis is relevant and accurate based on the criteria established.

The Source Node serves as the initial point of data entry into the flow but does not inherently provide the mechanisms to filter out data. A SAS Table refers to a structure where data is stored but does not facilitate the exclusion process directly. Meanwhile, a Data Source is simply the origin of the data being analyzed and does not perform the action of filtering or excluding data. Thus, the Filter Tool is the appropriate choice for managing which observations are included in an analysis.