Table 4.
Water Source | Code | No. of Samples | Fluoride Content (ppm) | Std. Deviation | ||
---|---|---|---|---|---|---|
Min. | Max. | Mean | ||||
Bottled Water | B1 | 3 | 0.8 | 1 | 0.92 | 0.10 |
B2 | 3 | 1.2 | 1.4 | 1.30 | 0.10 | |
B3 | 3 | 0.8 | 1.9 | 1.83 | 0.06 | |
B4 | 3 | 0.9 | 1.1 | 1.00 | 0.10 | |
B5 | 3 | 0.9 | 1 | 0.93 | 0.06 | |
B6 | 3 | 1 | 1.1 | 1.03 | 0.06 | |
B7 | 3 | 0.9 | 1.1 | 0.97 | 0.12 | |
B8 | 3 | 0.8 | 0.9 | 0.87 | 0.06 | |
B9 | 3 | 0.9 | 1.1 | 1.00 | 0.10 | |
Average/mean | 0.91 | 1.18 | 1.09 |