Variables

Min

Average

Max

Standard deviation

$\Delta \overline{x}$

Protection

1.13

1.51

2.54

0.42

0.03

Reservoir

1.00

1.86

3.34

0.38

0.09

Infiltration

1.40

3.51

7.6

0.20

0.05

Sum I_{v_M} = 6.88

${\displaystyle \sum \Delta \overline{x}}=0.17$

Error E_r = 2.50%