Some say that Z is the sign of Zorro (Spanish for fox), the fictional sword-wielding masked vigilante who defended and helped the poor. In statistics, it is something different. In statistics ...

Its musical title is legendary: “Out of the night, when the full moon is bright, comes the horseman known as Zorro. This bold renegade carves a 'Z' with his blade. A 'Z' that stands for Zorro.” ...