Anyone that can help me with this script that im testing (math.random) ?

You should define math.random() as a variable because it makes it easier to work with like i have done below.

local function BrickColorChange (Part)
    local RandomizedNumber = math.random(1,4)
    print(RandomizedNumber)
    if RandomizedNumber > 2 then
    Part.BrickColor = BrickColor.new("Pastel green")
    end
end

BrickColorChange(workspace.Baseplate)