1. Consider the relation race. What is displayed by len( race ) •10 •3 •9 •4 2.
The code len(race) returns the number of elements in the relation race.
If we have the relation race = {10, 3, 9, 4, 2}, then len(race) would return 5.
It seems that you are trying to perform multiple operations on the relation "race". However, it's unclear what those operations are and in what order they should be performed. Could you please provide more specific information or clarify your question?
The expression len(race) is used to find the length of the 'race' relation. However, without knowing more about the specific values or structure of the 'race' relation, it is difficult to determine the exact result of len(race).
In general, the len() function in many programming languages is used to find the length of a collection or container type, such as strings, lists, or tuples. It counts the number of elements or items in the collection and returns an integer value.
To find the length of a relation in a specific programming language, you would need to have a clear understanding of how that language defines relations and how they are represented in code. Different programming languages or database systems may have different methods or conventions for working with relations.
In summary, to determine what is displayed by len(race), you would need to know more about the specific values and structure of the 'race' relation, as well as the programming language or database system being used.