To correct an answer in a quiz after the attempt:

1. Toggle Edit on.
2. On the course homepage, navigate to the quiz and click on it.
3. Click on Questions at the top of the page.
4. Find the question and click the link of the question title.
5. Update the correct answer.
6. Save changes.
7. Follow the re-grade quiz steps below.

To re-grade your quiz, follow these steps:

1. Go to the quiz
   1. From the homepage
      1. Click on the name of the quiz to open it.
      2. Click Results
2. Regrade quiz
   1. Regrade an entire class
   2. Click Regrade all to re-score all submitted attempts
      
   3. Regrade selected students
   4. Scroll down and select individual attempts.
   5. Click Regrade selected attempts
      
3. You have successfully regraded your quiz