state the relationships for all the entities

What are Entities and Relationships?

When there is only ONE entity set participating in a relation, the relationship is called as

The number of entities to which another entity can be associated via a relationship set is expressed as :

Here we are going to design an Entity Relationship (ER) model for a college database.Say we have the following statements.1. A college contains many departments 2. Each department can offer any number of courses 3. Many instructors can work in a department 4. An instructor can work only in one department 5. For each department there is a Head 6. An instructor can be head of only one department 7. Each instructor can take any number of courses 8. A course can be taken by only one instructor9. A student can enroll for any number of courses 10. Each course can have any number of students From the statements given, the entities are

Entities can be associated with one another in which of the following?