Positions Random

Unity Engine
1

how I make appear random objects at the vertices 0.9 and -0.9.

My idea is to make objects appear randomly but only at the vertices I mentioned above, I want them to appear only on these positions

Possibly it is in c# I use this language.

Sorry for my english, i speak spanish.

2

Just roll Random.Range(0,100). If it is bigger than 50, place it at 0.9, else at -0.9.