Final answer:
Strike Zone FSI is a metric used in baseball to evaluate the fielding performance of catchers. It involves measuring a catcher's ability to frame pitches and receive them in the strike zone.
Step-by-step explanation:
The Strike Zone FSI (Strike Zone Fielding Statistics Index) is a metric used in baseball to evaluate the fielding performance of catchers. It measures a catcher's ability to frame pitches and receive them in the strike zone. The calculation involves assigning values to different pitch locations based on their likelihood of being called a strike, and then comparing the catcher's actual called strikes to the expected called strikes. The formula for calculating Strike Zone FSI varies, but it typically involves summing the differences between the expected called strikes and the actual called strikes.