Quote:
Originally posted by Lunchbox7
Maybe Im interpreting the question wrong but wouldnt it be 1/2.
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That was my first thought, it's either going up or it's going down, right?? I figured all those other details were thrown in just to try and confuse the situation....
EDIT: I guess it would depend on how you just arrived, if you arrived in the elevator, and whether it was going up or down to get you there. The way it was described then, i.e. *always* as <1-2-3-4-5-4-3-2-1-2-3-4-5-4-....>, the *next* elavator would have 100% probability that it would be travelling in the opposite direction.
But if you came at some random time and waited for the elevator, without any prior knowledge of the direction of travel, I'd still say there's just a 1/2 chance that it will be going up or down. Anyone else agree/disagree??