# Question: let fx be some estimator and let y be...

###### Question details

Let f(X⃗ ) be some estimator, and let y be the “true” value
that f(X⃗ ) is estimating. For example, X⃗ might be a vector of n
iid random numbers with mean µ, while f(X⃗ ) is the sample mean. In
this case, y = µ.

（I don't know what to do about this question. Hope to get
help）