Board Thread:Event Discussion/@comment-70.166.177.77-20131207054710/@comment-70.166.177.77-20131208014838

@ObiBakaRo

You are absolutely right that it's like flipping a coin. Every rare summon (or flip) is an independent event. The idea is that every day you have a 2.1% chance of getting the card. The question people kept asking was how likely it would be for them to get a 5* card over a course of 30 days. The logic behind that is 1 minus the probability that you won't get a single 5* card at all (implying that every day your rare summon gives you something other than a 5*).

So 1 - (.979 ^ 30) = .471 :)

It's just like asking, what's the likelyhood of getting AT LEAST one head when flipping a coin, only the probability there is .5 as opposed to .021.