Write the symbols for the probability that a player is a great hitter, given that the player is an infielder.

On a baseball team, there are infielders and outfielders.
Some players are great hitters, and some players are not great hitters.
Let I = the event that a player in an infielder.
Let O = the event that a player is an outfielder.
Let H = the event that a player is a great hitter.
Let N = the event that a player is not a great hitter.