Final answer:
By default, user-defined formats in SAS are stored in a temporary catalog named 'work.formats' and are deleted at the end of the SAS session. a. True
Step-by-step explanation:
By default, user-defined formats in SAS are stored in a temporary catalog named work.formats and are deleted at the end of your SAS session. This means that any user-defined formats that you create during your session will not be available in future sessions.
For example, if you create a format called GradeFormat to assign letter grades based on numeric scores, this format will only be available for the duration of your current SAS session. If you want to use it in a future session, you will need to recreate it or save it in a permanent format catalog.
In order to retain user-defined formats across SAS sessions, you can use the PROCFORMAT procedure to create permanent formats in a designated catalog.