It is better to have data that is too fine than too coarse because fine data can be converted to coarse data by
A)separating the data into its constituent parts.
B)placing the data into a data warehouse.
C)using regression analysis.
D)placing the data into a data mart.
E)summing and combining the data.

Question

Quizplus · Accepted Answer

Fine data can always be summed or combined to create a more coarse level of data if needed. It is much harder to create fine-level data from coarse data that has already been aggregated. Therefore, having fine data is preferred over coarse data.

It Is Better to Have Data That Is Too Fine