This is a Q&A forum for the STAT 205 class.
Please post any questions related to the course materials: basic concepts, HW, and R codes.
The instructor may answer the questions within 24 hours.
But, everyone can contribute to the explanations to help each other.
You don't have to use your real name in this forum.
So, feel free to take a nickname when you register.
It is critical to have mutual respect in this forum.
Hope this forum is useful for everybody in class!