13 There are two types of coins in a money box:
- 20\% are bronze coins
- 80\% are silver coins
Craig takes out a coin at random and places it back in the money box.
Craig then takes out a second coin at random.
13
- Find the probability that both coins were of the same type.
13 - Find the probability that both coins are bronze, given that at least one of the coins is bronze.
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