Which of the following is NOT a main tool used by data analysts?

Social media platforms are primarily designed for communication and information sharing, rather than data analysis. While they can provide valuable data that analysts may use, they do not serve as tools for analysis in the same way that data visualization tools, spreadsheets, and databases do.

Data visualization tools help analysts transform complex data sets into visual formats, making it easier to identify trends and insights. Spreadsheets are fundamental tools that enable analysts to manipulate, organize, and analyze data using various functions. Databases and query languages are essential for storing and retrieving large amounts of data effectively, allowing analysts to perform in-depth analysis.

Therefore, among the listed options, social media platforms do not qualify as tools directly used for data analysis, making them the correct response to the question.