Random Numbers

Hi guys. How can I call a random number in Lua? Hitting the random button on the Gmod Wiki didn’t help. True story.
Anyway, this is for making a swep that on creation, has a certain amounts of points divided randomly between stats like rate of fire, clip size, weapon damage - so forth so on.

Anyway,

[lua]local number = math.random( 1, 100 ) – Generates a number between 1 and 100 inclusive[/lua]

how can i apply this for a Entity Spawn in a lua Spawn List? like here:



local V = { 	
				// Required information
				Name = "Truck Test", 
				Class = "prop_vehicle_jeep",
				Category = Category,

				// Optional information
				Author = "Iñaki,Valve",
				Information = "...",
				Model = "models/Inaki/truck_driveable.mdl",
				
				KeyValues = {
								vehiclescript	=	"scripts/vehicles/Truck.txt",
								Skin			=	"--HERE I WANT TO PUT THE RANDOM NUMBER--"
							}
			}

list.Set( "Vehicles", "trucktest", V )