You have four socks in your drawer, 2 blue and 2 brown. You get up early in the morning while it's dark, reach into your drawer, and grab two socks without looking. What is the probability that the socks are the same color? (Hint: If you take one sock first, what's the probability the second sock matches it?) If instead there are 16 blue and 16 brown socks, what is the probability that the socks you choose are the same color? (Write your answer as a fraction.)