The allocation of topics on the final will be changed so that topics that were covered after Quiz 2 (meaning computability) will be a higher percentage of the exam than was initially anticipated. Thus Quiz 3 topics will have an increased representation. (This does not mean the final will be longer than anticipated. It just means that the percentages allocated to different topics will be shifted).
This choice will not be popular with everyone. Below I will discuss some of the rationale for this choice, but first let me state my position and suggest how you should view this.
The fire alarm was not my fault. (Nor was it yours). I view it as an ``Act of God.'' Some of you might imagine you suffer because of it and the resulting change in grading weights. Perhaps you do, but be philosophical about it. These things happen.
View Quiz 3 as some good real-time practice. Make sure you can do the problems there, and that will help you do better on the final.
While I sympathize with the many different positions you may have, the decision on how to address the loss of Quiz 3 is final and not subject to appeal. In particular, I will not consider requests for alternative resolutions. In particular, students will not be given individual choices on how their different tests are to be weighted in computing their grade.
Now, here are some factors I took into consideration.
Some students were hoping to improve their overall scores by doing better on Quiz 3 than they did on previous quizzes. Because the Quiz 3 material will re-appear on the final, I believe these students retain the chances of improving their grade to the same degree as before.
I believe that most students will not end up worse off by this change because they should do just as well on the Quiz 3 portion of the final as they would have done on Quiz 3.
Here are some options I considered and discarded: