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Variable Separable Method

A flood havin...

Question

A flood having a return period of 50 years . The risk that this flood may occur in next 20 years will be ___________
0.33

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Solution

The correct option is A 0.33
T = 50 years
$P = \frac{1}{T} = 0.02$
$R i s k = 1 - q^{n}$
$= 1 - (1 - P)^{20}$
$= 1 - (1 - 0.02)^{20} = 0.3324$

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