Please answer all subparts. I will really really upvote. Thanks

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.4: Values Of The Trigonometric Functions
Problem 24E
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Please answer all subparts.

I will really really upvote. Thanks

Assuming that y is N3 (u ,V), where
2
(4 1 0V
V = 1 2 1
1 3.
3
- 3
- 6
1
|
Let
A =
- 3
2
8
– 6
3
a) Find Var(Ay).
b) Find E(y'Ay).
c) Does y'Ay have a chi-square distribution? Justify.
Transcribed Image Text:Assuming that y is N3 (u ,V), where 2 (4 1 0V V = 1 2 1 1 3. 3 - 3 - 6 1 | Let A = - 3 2 8 – 6 3 a) Find Var(Ay). b) Find E(y'Ay). c) Does y'Ay have a chi-square distribution? Justify.
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