Marissa is drawing coins from a bag that contains $5$ pennies (yellow), $4$ nickels (green), $5$ dimes (red), and $2$ quarters (blue). Test your ideas by creating a bag of coins. Use the various colors to represent pennies, nickels, dimes, and quarters.

1. What is the probability that she will draw a nickel? Write your answer as a fraction, as a decimal, and as a percent.

   Hint (a):

   Remember, probability is the number of successful outcomes out of the total number of possible outcomes.

   $\frac{\text{number of nickels}}{\text{total number of coins}}$

   How many nickels are in the bag?
   How many total coins are in the bag?

   Answer (a):

   $\frac{4}{16}=\frac{1}{4}$

2. If one penny, two dimes, and one quarter are added to the bag, what is the new probability that Marissa will draw a nickel? Write your answer as a fraction, as a decimal, and as a percent.

   Hint (b):

   What is the new number of nickels?
   What is the new total number of coins?

3. In which situation is it more likely that Marissa will draw a nickel?

   Hint (c):

   Compare the answer in (a) to the answer in (b).
   Which answer is greater?