In this function, y is the dependent variable and x is the independent variable. Variable used in an experiment or modelling can be divided into three types:  dependent variable ,  independent variable , or other.
About 70% of men have an eye dominance that matches their handedness. BUT, 30% do not. Most right handers have a dominant right eye and the bulk of southpaws a dominant left. These are the people who are well advised to shoot both eyes open (assuming that they are shooting from their strong shoulder).
URL of this page: //medlineplus.gov/ency/article/001004.htm. Strabismus is a disorder in which both eyes do not line up in the same direction, so they do not look at the same object at the same time. The condition is more commonly known as crossed eyes..