If a flood has a recurrence interval of ten years,it means ____________________.
A)that a similar-sized flood will occur once every ten years
B)that a similar-sized flood has a greater probability of occurring every tenth year than during any one of the intervening years
C)that in any given year a similar flood has a 1/10 chance of occurring
D)that the flood must be bigger than any other flood during any given 10-year interval
E)None of these are correct.

Question

Quizplus · Accepted Answer

The recurrence interval of a flood, such as ten years, means that in any given year, there is a 1/10 (or 10%) chance of a flood of that size occurring. It does not guarantee the flood will happen exactly every ten years, nor does it imply a greater probability in the tenth year compared to other years.

If a Flood Has a Recurrence Interval of Ten Years,it