Calculate a baseball player's batting average. Calculating a baseball player's batting average is not a difficult task at all. A batting average represents the percentage of at bats that result in hits for a particular baseball player. The formula is: That's all there is to it.
To fly under the radar means to act in a way so as to actively avoid detection. It is the opposite of 'in your face'. There is an element of getting away with something but it is not necessarily bad.
The term bogie, also spelled bogey, refers to a false blip on a radar display. The term is also used to describe radar echoes that occur for unknown reasons, especially in the military, where such a signal might indicate hostile aircraft.