What happens on the coin may be facing up or facing the head of a coin. We cannot know whether the coins will turn heads or tails. From the probability that the coin will turn heads with 50 percent and a 50 percent tails valleys.
What will happen to the US side facing up or tails up. We can not know that the US will turn heads or tails. The probability that the coin will turn heads with 50 percent and 50 percent, with upturned tails.
What will happen to turn the head up or coins may turn over the tails. We don't know what the coin will turn up heads or tails. From the probability that the coin will turn the head 50 percent and turn the tails are 50%