what is a python function what is the formula for determining the amount of chance rainfall how does the python solution work how to find chance of flooding in excel calculating chances of flooding how to calculate annual chance of flooding in python how to determine a rainfall risk can you run a linear regression in excel calculate chance of flooding in a database how to determine annual chance of flooding what is the python solution for determining annual chance flooding how to predict the chance of floods when do you find chance of flooding in python how to find yearly chance of flooding how to measure annual chance flood how to pythonic solution to determine chance floods how do you determine yearly chances of flooding what is the pythonic solution to determine the probability of flooding how do you determine the chance of flooding what is the average ground elevation