Sometimes a database can contain "bad data," meaning incomplete, incorrect, inaccurate, or irrelevant records, which can be corrected or deleted through data cleansing. T/F

True.

Explanation:

The database can contain "bad data".

Bad Data is incorrect, incomplete, irrelevant or inaccurate records and the bad data can only be corrected or by data cleansing.

Data cleansing is deleting the bad data from the database. It is very important technique which is implemented by almost every one dealing with bad data.

Hence we conclude that the answer to this question is True.