I just can't understand. E[mu-hat]. Why mu-hat? As I understand mu-hat is for sample mean.But here I have E[mu-hat(sample mean)] = population meanHi @DenisAmbrosov ,
From left to right, the sum of the population mean over n iterations divided by n equals the population mean.
Not too sure what your question is, perhaps you can be more specific?
I got it. Thank you!Dear @DenisAmbrosov ,
I think the math is trying to say - the expectation of the sample mean or the average of many sample means should give you the population mean, thanks.