Please provide the math mathal equations and answer to the following:

In the Rocky Mountain region, there are endangered species like jumping mice and burrowing owls that are protected by the EPA. If you want to build a roadway to facilitate traffic congestions in Denver, part of your plan will include using Simpson’s diversity index to calculate the number of organisms in two communities. If EPA warned you that there are 400 burrowing owls in proposed region Community A and 500 burrowing owls in proposed region Community B, determine Simpson’s diversity index for community A.