Final answer:
The statement is true; 3NF avoids redundancy and data integrity problems by eliminating transitive dependency, which exists in 2NF.
Step-by-step explanation:
The statement that a 3NF (Third Normal Form) design avoids redundancy and data integrity problems that can still exist in a 2NF (Second Normal Form) design is true. When a database is in 2NF, it is free from partial dependency, meaning non-prime attributes are fully functionally dependent on the primary key. However, 2NF does not address the issue of transitive dependency, where non-prime attributes depend on other non-prime attributes. A 3NF design eliminates this transitive dependency, ensuring that each non-prime attribute is non-transitively dependent on the primary key. This leads to less redundancy and reduces the chance of data integrity issues. By achieving 3NF, you are ensuring that the database is structured in a way that one attribute does not determine another attribute, which is not a key attribute.