'For Wumpus World model, why is the probability of pits in squares assumed to be 0.2?
At the beginning of the probability derivation for a pit in square (1,3), it is stated that "there would be a 'prior' assumption for the placement of pits in the Wumpus grid. There is an assumption of a 20% chance a pit exists in each square at the beginning of the game (independent of what Pits are in the other squares)".
It isn't completely specified why this assumption was made from any of the resources I have looked through.
My understanding currently is that it may be the probability of the first frontier and query squares ((1,3), (2,2), (3,1)) over the total squares except (1,1), since that will never have a pit in it. So it would result in 3/15 = 0.2.
But I am not sure if this is it.
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