1. ## [Solved] Need Help Urgent

Solved thanks

2. ## Re: Need Help Urgent

Hey peruvian.

3. ## Re: Need Help Urgent

I dont quite understand how to show that Y1, Y2, ..., Yn are mutually independent, which I think is necessary for this proof?

bump

5. ## Re: Need Help Urgent

They have to independent for the variance criteria to hold.

6. ## Re: Need Help Urgent

^solved thanks.