Final answer:
A derived attribute is an attribute whose values can be calculated from related attribute values.
Step-by-step explanation:
An attribute whose values can be calculated from related attribute values is called a derived attribute. This means that the value of the derived attribute can be obtained by performing calculations or operations on other attribute values.
For example, in a database of students, the age of the student can be calculated from their date of birth. The date of birth is the related attribute, and the age is the derived attribute.
Derived attributes are useful for reducing data redundancy and improving data integrity in database design.