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.
A drone is what tyrannical people use to off dissidents, terrorists, or those who rebel against cultural elites that have no authority to rebel against. Currently, there are no international rules or regulations on the use of drones by state powers.