Hi, I’m wondering how this system works, can someone explain?

```
local Items = {
{"Table",1},
{"Lamp",5},
{"Chair",10},
}
local TotalWeight = 0
for _,ItemData in pairs(Items) do
TotalWeight = TotalWeight + ItemData[2]
end
local function chooseRandomItem()
local Chance = math.random(1,TotalWeight)
local Counter = 0
for _,ItemData in pairs(Items) do
Counter = Counter + ItemData[2]
if Chance <= Counter then
return ItemData[1]
end
end
end
for i=1,10 do
print(chooseRandomItem())
end
```

I understand that [1] is the name, [2] I don’t quite understand the number that should fall out to get [1]?