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Five coins all balanced the same were tossed 150 times. Note that, while the coins are all balanced the same, they may or may not be fair coins. Since five coins were tossed, the possible number of heads for each toss could be
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Suppose there are 10 coins laid out in front of you. All of the coins are fair (i.e. have an equal chance of heads or tails) except one, which flips to heads every time. You draw one coin at random and flip it 5 times. If each of
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Clayton has three fair coins. Find the probablitlity that he gets two tails and one head when he flips the three coins.
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Three fair coins are tossed at the same time. What is the probability that one of the coins will show heads and other two will show tails?
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Three fair coins are tossed at the same time. What is the probability that one of the coins will show heads and other two will show tails?
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Dave Bowers collects U.S. gold coins. He has a collection of 54 coins. Some are $10 coins, and the rest are $20 coins. If the face value of the coins is $780, how many of each denomination does he have?
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