Which tool is designed for business analytics to create visualizations and perform ad hoc analysis?

Amazon QuickSight is specifically designed for business analytics, enabling users to create visualizations and perform ad hoc analysis on data. It offers an interactive and user-friendly interface that allows both technical and non-technical users to derive insights from data without requiring extensive programming or data science skills.

QuickSight supports a variety of data sources and has features like automatic data discovery, machine learning insights, and the ability to share dashboards and visualizations seamlessly within an organization. This makes it an excellent choice for organizations looking to empower their teams with data-driven decision-making capabilities.

The other options do not align with the primary function of creating visualizations and conducting business analytics. AWS Lambda is a serverless compute service used for running code in response to events, Amazon EC2 provides scalable virtual servers for running applications, and Amazon EMR is focused on big data processing, utilizing frameworks like Apache Hadoop and Spark. While these services serve important roles within the AWS ecosystem, they do not specialize in the visualization and analytics capabilities that QuickSight offers.