What is it called when you make predictions about data not yet recorded?

It is called interpolation. Interpolation is an estimation of an incentive inside two knowns esteems in a grouping of qualities. Polynomial insertion is a technique for assessing esteems between known information focuses. At the point when graphical information contains a hole, however, information is accessible on either side of the hole or at a couple of particular focuses inside the hole, addition enables us to evaluate the qualities inside the hole

The best sociological research method would have to be using experiments although it has some disadvantages as well