Data Analysis6 min read
Choosing the right chart for the question
A practical visual guide to comparisons, trends, distributions, relationships, and uncertainty.
NT
NGOUMTSOP TEUZEM Yeiayel
Data Scientist, AI Engineer and Digital Innovation Professional
Updated September 11, 2026
Table of contents
Understand the challenge
A practical visual guide to comparisons, trends, distributions, relationships, and uncertainty. This article proposes a directly usable method with clear assumptions and practical verification criteria.
Put it into practice
At Bâtir le Pays SARL, the useful question is always how this practice improves a real decision, service, or learning outcome.

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