I'm having some difficulty understanding parts of the solution to this problem. I think I understand the basic idea that MMSE decision rule is the posterior mean: $$h_{MMSE} = E[Y|X_{1}=x_{1}...X_{n}=...

# MMSE Decision Rule Problem

MMSE Decision Rule Problem

I'm having some difficulty understanding parts of the solution to this problem. I think I understand the basic idea that MMSE decision rule is the posterior mean: $$h_{MMSE} = E[Y|X_{1}=x_{1}...X_{n}=...

I'm having some difficulty understanding parts of the solution to this problem. I think I understand the basic idea that MMSE decision rule is the posterior mean: $$h_{MMSE} = E[Y|X_{1}=x_{1}...X_{n}=...