Using Statistical Analysis to Assess Urban Groundwater in Beni Mellal City (Morocco)

Table 3

Descriptive statistics.

Parameters		Min.	Max.	Mean	SD	Variance	Skewness	Kurtosis
EC	51	490.00	1260.00	778.94	185.46	34396.58	0.586	−0.558
pH	51	7.10	7.90	7.53	0.19	0.04	−0.128	−0.510
TDS	51	355.00	918.00	563.43	137.51	18910.33	0.664	−0.531
T (°C)	51	14.40	29.20	26.06	2.68	7.19	−1.899	5.230
DO	51	4.75	5.70	5.16	0.23	0.05	0.404	−0.363
Ca	51	72.10	284.00	172.06	49.41	2441.62	−0.084	−0.242
Mg	51	20.00	85.40	53.28	14.45	208.84	0.194	−0.792
Na	51	2.90	67.00	39.01	13.55	183.47	−0.054	−0.356
K	51	1.00	10.50	3.36	1.93	3.73	2.226	4.289
HCO3^2−	51	210.00	468.00	369.71	57.19	3271.21	−0.719	0.121
SO4^2−	51	65.00	851.00	351.90	219.04	47978.85	0.615	−0.720
NO3^−	51	6.20	41.20	21.90	8.21	67.36	0.404	−0.353
Cl^−	51	12.32	114.75	63.50	23.07	532.15	0.579	−0.392
Ag	51	57.00	75.00	58.71	2.64	6.97	4.831	26.103
Al	51	41.00	383.00	142.33	58.90	3469.75	1.615	3.810
Ba	51	36.70	168.50	136.73	36.05	1299.93	−1.852	2.231
Cd	51	0.00	3.00	1.29	0.90	0.81	0.533	−0.496
Cr	51	1.00	7.00	3.24	1.93	3.74	0.371	−1.206
Cu	51	98.00	151.00	109.29	9.51	90.41	2.168	6.211
Fe	51	44.00	445.00	242.20	91.00	8281.12	−0.406	−0.186
Li	51	2.70	9.30	8.65	1.15	1.32	−3.722	14.702
Mn	51	14.00	26.00	17.29	2.63	6.93	0.879	1.011
Ni	51	0.00	15.00	8.92	3.32	11.03	−1.040	0.859
Pb	51	1.40	5.20	3.49	1.02	1.04	0.259	−1.111
Zn	51	406.00	710.00	641.12	85.22	7263.15	−1.019	−0.181