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 radar gun, as defined by the Merriam-Webster dictionary, is a handheld device that uses radar to measure the speed of a moving object.. This gun measures the speed of a ball in sports such as tennis and baseball. Police officers also use this device to track the speed of moving vehicles on the road.