Please explain and help solve.

3. Assume you are dealing with an attribute that has meaningful values at every point within a region (e.g., temperature, elevation, concentration of some mineral), see left part of Fig. 6.e3. Then, given the values of that attribute at a set of sample points, you can use Figure 6.e3: The spatial mapping process. a spatial estimation method to predict values of this attribute at every (unsampled) point of the region, so that a map of the kind shown in the right part of Fig. 6.e3 is produced. Discuss the estimation method you will chose in place of symbol "?" (center of Fig. 6.e3) so that you can go from the data to the map, and why you will make this choice