Find directly the expected value and the variance of : Recall that xi ....xn are assumed...

Question

Question

Find directly the expected value and the variance of :

Σ JE 3π .2 σ i-1 ΣΕ1 Σ

Recall that x_i ....x_n are assumed to be non random and that , yi=Bax Ei, i= 1....n with €1...EiidN (0, o

math Advanced-Math

Answer 1

Answer #1

ni yi 2 a,bicis Constant SE ay)-cEy) ECE)- i Elyi) .iE (pxi+ei) ECatby) atbEly)? Eler)- 111 C Exi(Bait ECei) =1 Ans Var C) x

Answer 2

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