When using a Summarize tool, which action would allow you to calculate the average of a numeric field?

To calculate the average of a numeric field using the Summarize tool, selecting the option that specifies "Average" is the correct approach. This action specifically computes the mean of the selected numeric values, providing a clear representation of central tendency within your data set.

Utilizing the Average function within the Summarize tool effectively aggregates the data by adding all the values of the designated numeric field and then dividing by the total count of those values, which yields the average. This can be particularly useful in scenarios where you want to analyze data trends or understand typical values.

Other options serve different purposes in data summarization. For example, the Count function would provide the number of entries in the field but does not yield any measure of central tendency. The Sum function would add up all the numeric values, which does not provide the average either. Meanwhile, the Group By option is used to categorize data before summarization but does not itself perform calculations; it simply defines the groups for which calculations will be done. Understanding the specific functions of each option is crucial in leveraging the Summarize tool effectively.