Q1. [1] § Test Yourself (4.1) § Important concepts in statistics § Test Yourself (4.2)
For Data Science, data is typically collected in tabular form and stored in various formats. Which of the following is commonly used for storing such tabular data sets?
- (A) SQL databases
- (B) HTML files
- (C) JSON
- (D) NumPy
Previously asked in CBSE board exam
2025 104/S Q2 (vi)
Generated by claude-sonnet-4-6 · 2026-06-21 03:20 · grounding rag
Model Answer
(A) SQL databases
SQL databases are commonly used for storing tabular data sets in Data Science, as they organise data in rows and columns for efficient querying and analysis.
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Explanation
The source passage (Orange Data Mining chapter) mentions that the File widget in Orange loads data from CSV, Excel, and SQL formats — confirming SQL databases as a standard storage format for tabular data. NumPy is a Python library (not a storage format), HTML is for web pages, and JSON stores non-tabular/nested data. Examiners expect you to simply identify option (A) with a brief justification.
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