Shen is playing a carnival game. He is blindfolded while he throws a dart at a board of 12 balloons, as shown below. Each balloon is labeled "S" for small, "M" for medium, "L" for large, or "XL" for extra-large. The board has 5 small balloons, 1 medium balloon, 4 large balloons, and 2 extra-large balloons. He hits one of the balloons at random and wins a stuffed animal of that size.

Find the odds in favor of Shen winning a medium stuffed animal.

Find the odds against Shen winning a medium stuffed animal.