My question is what is that x?

you said here Gaussian distribution. did you mean exponential? In the question is says exp

]]>What does it mean to put a point inside the function (x,miu-i,Sigma)?

I mean, inside the function we use x in exponential distribution, but the function of this distribution includes x, which in this case can is a point and not a number (unless d=1).

How should I treat that case?

]]>2. That's part of the question. It should be simple. ]]>

In the last part (Decision Rules and Concentration Bounds) Q1:

- can we assume that the random variables X
_{i}are independent? i.e. can we assume that Cov(X_{i}, X_{j}) = 0 for i != j? - How should the final answer (for section a) look like? In the recitation we isolated x but here it doesn't seems to be possible. So how we'll know when the condition for x is simple enough?

Thanks

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