A bag contains 2 silver coins, 2 gold coins, 6 copper coins, and 5 brass coins. A coin is chosen without looking. What is the probability that it will be gold?
The total number of coins in the bag is 2 + 2 + 6 + 5 = 15.
The probability of choosing a gold coin is 2 (number of gold coins) / 15 (total number of coins) = 2/15 = 0.1333 or 13.33%.
Therefore, the probability of choosing a gold coin is approximately 13.33%.