Talk:Core Booster

i opened a pack today (it was a TCG one) and there was not a single rare or shiny card at all in it 68.186.54.223 06:20, 27 July 2009 (UTC)

Which Booster was it? cause in some of them, that is common sadly~MEOW~ Might of the BIRD Empire~~ 22:49, 31 July 2009 (UTC)

i think it was raging battle 68.186.54.223 14:11, 27 August 2009 (UTC)

Mathematical Discussion

I've done a little math; and here's my results.

Question: "If you see a booster box, and someone takes N packs, and you buy a pack, what are the chances that you will get a ultra rare card?"

So, there are 24 packs in a booster box. For this example, let's say someone takes 1 pack. Now, the chances of getting a Ultra Rare are 1/12, so, the chance that the pack he/she took as a Ultra Rare is 1/12, and the chance that the pack he/she took doesn't have an Ultra Rare is 11/12.

Now, if the pack he took had an Ultra rare, then, assuming that the 1/12 probability is in place, there is 1 Ultra Rare left, and 22 packs without Ultra Rares. Thus, if you choose a pack in this scenario, the chance that it will have an Ultra Rare are 1/23.

If the pack he took DIDN'T have an Ultra Rare, then, assuming that the 1/12 probability is in place, there are 2 Ultra Rares left, and 21 packs without Ultra Rares. Thus, if you choose a pack in THIS scenario, the chance that it will have an ultra rare are 2/23.

Well, the 1/23 scenario only happens 1/12 of the time, so the chance that you pick up a pack with an Ultra Rare when the missing pack had an Ultra Rare is 1/276.

Likewise, the 2/23 scenario happens 11/12 of the time, so the chance that you pick up a pack with an Ultra rare when the missing pack did not have an Ultra rare is 22/276.

If you add 22/276 and 1/276 up, you get 23/276, which --- DUN DUN DUN! --- can be reduced to 1/12.

If you do it with 2 packs, you'll have the instance of both Ultra Rares being taken, but even so, you'll get 1/12.

So; it DOESN'T MATTER which pack you choose, how many are left when you choose it, or when you choose it; it has the same probability.

Thank You.

Asian English cards

I have a quick question about Asian-English Yu-Gi-Oh! cards. I'm going to Japan the day after tomorrow, and I want to buy some cards there. I know they print English cards and distribute them in Japan, but after looking at some of the newer booster packs, there doesn't seem to be any Asian-English varieties for those packs. From what I can tell, they stopped printing Asian English cards after Enemy of Justice... is this true? 75.3.93.95 03:41, March 24, 2010 (UTC)