According to your text-book/notes:I have the random variable X : (Ω;A)->(R;B(R)) and Y : (Ω;A)->(R,B(R)), where A is a sigma-algebra and for almost every b X(b)=Y(b).
Is Y a random variable?
I read that Y isn't a random variable but I don't understand why.
Please help
According to your text-book/notes:
What is a "random variable" (definition)? What are its properties?