Sometimes we tweak values of higher tier LGs but only if we don't think anyone has received them yet. Unfortunately the database for drops is based on players' recent activity and if he wasn't logged on for a while when we checked, it would have appeared as though nobody had it. The fairest thing to do is to return the tiers to their former value. This will take effect tomorrow morning.
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Computing the probability that at least one of the following events will occur:
P(a or b ... or z) = 1  P(!a and !b ... and !z)
Probability
