Answered step by step
Verified Expert Solution
Question
1 Approved Answer
2.6.8. Let X = (X1,...,Xn) be an n-dimensional random vector, with the variancecovariance matrix given in display (2.6.13). Show that the ith diagonal entry of
2.6.8. Let X = (X1,...,Xn) be an n-dimensional random vector, with the variancecovariance matrix given in display (2.6.13). Show that the ith diagonal entry of Cov(X) is 2 i = Var(Xi) and that the (i, j)th off diagonal entry is Cov(Xi, Xj ).
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started