In the context of a GIS, what is interpolation?

Group of answer choices

It is one of the scales of raster analysis that involves determining basic statistical values for the raster as a whole.

It is a single layer process of assigning a new class or range value to all pixels in the dataset based on their original values.

It is a statistical technique that estimates the value of all unknown points between the known points while creating surfaces.

It is the process of creating an output polygon layer by combining the spatial extent of two or more layers.

It is the process of creating an output line layer by combining the spatial extent of two or more line layers.