How do i find the average position of a group of objects?

just do this loop through each one and add the vector3 pos together! might work not sure about the list.

local acc = vector3.new(0, 0, 0)
local partlist = {}
partlist.part1 = worspace.Part1 -- change these and add new ones if needed
partlist.Part2 = worspace.Part2
partlist.Part3 = worspace.Part3

for _,part in pairs(partlist) do
	acc = acc + part.Position
end
local avgx = acc.X / #partlist
local avgy = acc.y / #partlist
local avgz = acc.Z / #partlist

local avg = vector3.New(avgx, avgy, avgz)
print("finished!")