In a certain computer game, the computer can make 1 of 4 moves, which it chooses randomly. according to the game
manual, the probability it will make 1 of the moves is 0.5, the probability it will make 2 of the remaining moves is 0.25,
and the probability it will make the last move is unknown, but nonzero. why can the player immediately know that these
probabilities are incorrect?