Question 52374: a box containa two coins. one coin is heads on both sides, and the other is heads on one side and tails on the other. one coin is selected from the box at random and face of one side is observed,. if the face is heads, what is the probablity that the othersie is heads?
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! If you select a coin and observe that one side is heads, then you still do not know which coin you have. If it is the two headed coin, then the other side is still heads. If it is the heads/tails coin, then the other side is tails. So, the probability of a head on the other side of the coin, given a head on the first side is still 1/2.
R^2 at SCC
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