a. The two signal constellations shown in Figure exhibit the same average probability of symbol error. Justify the validity of this statement.
b. Which of these two constellations has minimum average energy? Justify your answer
You may assume that the symbols pertaining to the message points displayed in Figure are equally likely.
![785_Figure 9.jpg](https://secure.tutorsglobe.com/CMSImages/785_Figure 9.jpg)