I think that an infographic is a chart or survey, or a graph of some sort.
A inforgraphic is a humans way to see patterns and sequences things happen in. othere than that i really have no idea what it is.
https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcTZiBwIL856xy5xm763dmBe7oH8Xxjh5ZHq7QpxhGFDIwK2av0F