> For the complete documentation index, see [llms.txt](https://opendatafrance.gitbook.io/guide-pour-concevoir-de-bonnes-datavisualisations/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://opendatafrance.gitbook.io/guide-pour-concevoir-de-bonnes-datavisualisations/faire-des-graphiques-corrects/indiquez-le-niveau-de-confiance.md).

# Indiquez le niveau de confiance

Indiquez à votre public la confiance que vous accordez à vos affirmations en incluant des barres d'erreur chaque fois que vous utilisez des données pour étayer un argument.

![](https://3342670461-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F9i4x1B1BASbvWv3IOAg2%2Fuploads%2FCNXMFfc2SvxNryN5B3T4%2FShow%20level%20of%20confidence.jpg?alt=media\&token=b4f62cdf-f811-40af-8572-5a0c3232a478)

Source: [The importance of uncertainty, Berkeley Science review](http://sciencereview.berkeley.edu/importance-uncertainty/).

En savoir plus sur ce sujet : 

* [Visualizing the Uncertainty in Data | FlowingData](https://flowingdata.com/2018/01/08/visualizing-the-uncertainty-in-data/)
* [Visualizing uncertainty still unsolved problem | FlowingData](https://flowingdata.com/2013/07/10/visualizing-uncertainty-still-unsolved-problem/)
* [References for visualising uncertainty - Visualising Data](https://www.visualisingdata.com/2015/02/references-visualising-uncertainty/)
* [What are error bars, anyway, Berkeley Science review](https://berkeleysciencereview.com/2014/06/errorbars-anyway/)