How can I make a script choose from possabilities and do something with it? [Solved]

To put it simply I have eggs which will hatch into dinosaurs kind of at random but with probabilities. I believe I have the probabilities part is correct but I'm not sure how to make the script do something with the probabilities. What I mean is I dont know how to make the script chose one of the probabilities and make that dino "hatch" from it. This is very important for our game and I couldn't find help anywhere else any help is greatly appreciated. Im sorry for the question but I'm not very experienced scripting.

The script of probabilities

local Dilo = game.Workspace.Dilophosaurus
local Pachy = game.Workspace.Pachy
local Trike = game.Workspace.Triceratops
local Coeluro = game.Workspace.Coelurosaur
local Compy = game.Workspace.Compy


local chances = {
	['Dilo'] = 20,
	['Pachy'] = 20,
	['Trike'] = 10,
	['Coeluro'] = 20,
	['Compy'] = 30,
}

local results = {}

table.foreach(chances, function(key, value)
	for i = 1, value do
		table.insert(results, key)
	end
end)

local random = math.random(#results)

So now I changed the script to this, switching =< to <= and instead of and random not I just did and random >=. Example: It chooses a "Pachy" at 25% or less than 40 but greater than 15 which is 25 difference. Credit to zendaya774 for the help.

local random=math.random(0,100)
local randomchoice
 
    if random <= 15 then
        randomchoice = "Dilo" --15%
		print ("Dilophosaurus Hatched!")
    elseif random <= 40 and random >= 15 then --25%
        randomchoice = "Pachy"
		print ("Pachy Hatched!")
    elseif random <= 55 and random >= 40 then --15%
        randomchoice = "Trike"
		print ("Triceratops Hatched!")
    elseif random <= 70 and random >= 55 then --15%
        randomchoice = "Coeluro"
		print ("Coelurosaur Hatched!")
    elseif random <= 100 and random >= 70 then --30%
        randomchoice = "Compy"
		print ("Compy Hatched!")
    end