What is and inference on a graph?

Answer 1

Not sure exactly what you're looking for, but a single graph in itself often represents one even. For example 2011 December spending by people. You could infer that the day of maximum spending was the same every year. In truth you would need to exam several years to be absolutely correct. Or by looking at a graph of a projectile path of an up ward fired artillery round was the same for all artillery pieces. In a way you would be right in that the parabola described by y = x squared would describe the length and height of the projectile. But you would need more information, such as the initial velocity, the angle of the howitzer, the resistance of the wind and the wind direction and speed (velocity) actually know these parameters.