What are the chances of flooding in a 100-year floodplain per year?

Question

Question: What are the chances of flooding in a 100-year floodplain per year?

Options:

1.  0.1 percent
2.  1 percent
3.  10 percent
4.  100 percent

Answer 1

2. 1 percent

There is a 1 percent chances of flooding in a 100-year floodplain per year.

(Source: https://efotg.sc.egov.usda.gov/references/public/NM/FEMA_FLD_HAZ_guide.pdf)