Final answer:
A single data set of an associative array or dictionary is a collection of key-value pairs where each key is unique and is associated with a corresponding value. It is often used in computer programming to represent structured data.
Step-by-step explanation:
A single data set of an associative array or dictionary is a collection of key-value pairs where each key is unique and is associated with a corresponding value. In this type of data set, the keys are used to access the values, similar to how words are used to access their definitions in a dictionary.
For example, a data set representing student records in a school database could have the student ID as the key and the corresponding student's information (name, age, grade) as the value. By using the student ID as the key, you can easily retrieve the associated information for a specific student.