Which of the following best defines a "computed" worksheet?

A "computed" worksheet is characterized by its ability to perform calculations based on selected variables. This means that the worksheet takes in certain input data, processes it, and outputs results derived from those inputs. This function is fundamental in various applications, such as financial modeling, analysis, or any scenario where you need to derive insights or outcomes from multiple data points.

In this context, the key aspect is the computation—transforming the input data by applying specific formulas or calculations to get the desired results. This aligns perfectly with the definition of a computed worksheet, where the effectiveness and usefulness come not only from the raw data but from how that data is manipulated to yield useful information.

The other options describe various functionalities or characteristics that do not encapsulate the essence of what a computed worksheet is primarily designed to do. For instance, merging results from different data sources or using basic data input functions does not inherently involve computation but rather data consolidation or entry tasks. Similarly, relying on output from statistical models pertains more to the sources of the data rather than the processing aspect that defines computation.