Final answer:
Distributing questionnaires via mail or email has benefits such as anonymity, quick response, and limited reach.
Step-by-step explanation:
There are several benefits of distributing questionnaires via mail or email.
One benefit is anonymity, which allows participants to provide honest and personal responses without fear of judgment.
Another benefit is quick response, as participants can complete and return the questionnaire at their convenience.
Lastly, distributing questionnaires via email or mail can have a limited reach if the mailing list is incomplete or if emails go unanswered.