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 14 blue and 14 brown socks, what is the probability that
the socks you choose are the same color? (Write your answer as a
fraction.)