Say I wanted to index a table within a table, how would I do that?

for i,v in pairs(ids) do
    print(i .. " = id = " .. v.id .. ", value = " .. v.value)
end

Suprised the other answer was accepted. Didn't cover randomization, so I will. Doing

#ids

will actually return the ammount of entries in there.

local Table = {1, 9, 91, 4}

print(#Table) -- > 4

So, combining that with math.random,

local ids = {
    ["Sparkletime Valkyrie"] = {id = 1180433861, value = 10000},
    ["The Classic ROBLOX Fedora"] = {id = 1029025, value = 100000}
}

function random()
    local Selected = ids[math.random(#ids)]
    print(Selected .. " = id = " .. Selected.id .. ", value = " .. Selected.value)
end

Basically, we chose a random number between 0, and the ammount of entries in the table ids. We chose the entry that has the entry number that we randomly selected, and get its values.

If you want to know these randomize scripts, here they are:

function randomKey(d)
    local t = {};
    for k, v in pairs(d) do
        table.insert(t, k);
    end
    return t[math.random(#t)]
end

Just prints the random key

Say you wanted to click a button and access the id and value of the key? Here is a function for that

    local t = {}
        for k, v in next, yourtable do
            t[#t+1] = k
    end

    local key = t[math.random(1,#t)]
    local value = yourtable[key].yourvalue
    local id = yourtabletable[key].yourvalue

Put that in a function you want it in.