Statistical Analysis and Evaluation of Drinking Water Consumption Needs in Dakar from 2016 to 2025

Ndiouga CAMARA^1, , Ibrahima MBAYE², Déthié SARR¹ and Séni TAMBA³

¹University of Thiès, UFR Engineering Sciences, Cité Malick Sy, Thiès, Senegal

²University of Thiès, Sciences and Techniques UFR, Cité Malick Sy, Thiès, Senegal

³Polytechnic School of Thiès, Senegal

Cite this paper:
Ndiouga CAMARA, Ibrahima MBAYE, Déthié SARR and Séni TAMBA. Statistical Analysis and Evaluation of Drinking Water Consumption Needs in Dakar from 2016 to 2025. American Journal of Water Resources. 2021; 9(1):1-7. doi: 10.12691/ajwr-9-1-1

Abstract

In Dakar, a considerable deficit is observed in the distribution of drinking water. The demand for drinking water is increasing day by day and the available resources are insufficient. The objective of this article is first to assess the drinking water consumption needs of the Dakar region by performing a statistical analysis of the data. Statistical analysis of the data made it possible to assess the state of coverage of drinking water consumption needs. In addition, this statistical analysis will make it possible to make a comparison between the evolution of drinking water consumption needs and the current available resources. The results obtained show that after interpolations of the data by different polynomials (interpolation of degree 1, interpolation of degree 5, and interpolation of degree 10), the best interpolation in order to have an optimal projection of the evolution of drinking water consumption as a function of the population is the interpolation polynomial of degree 10. This equation called the Dakar equation which gives the consumption as a function of the population is as follows: Cons = 8,959.10²Pop² – 5,2592.10⁸Pop + 1,382.10¹⁴.

Keywords:
drinking water Dakar evolution perspective consumption needs statistics deficit

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