Answered step by step

Verified Expert Solution

Link Copied!

Question

1 Approved Answer

Posted on Jun 12, 2024

Is there a variance formula for 4 variables? For example, for 3 variables, it is: Var(A+B+C) = var(A) + var(B) + var (c) + 2cov(AB)

Is there a variance formula for 4 variables? For example, for 3 variables, it is: Var(A+B+C) = var(A) + var(B) + var (c) + 2cov(AB) + 2cov(BC) + 2cov(CA)

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

Recommended Textbook for

Numerical Analysis And Optimization NAO-III, Muscat, Oman, January 2014

Authors: Mehiddin Al Baali, Lucio Grandinetti, Anton Purnama

1st Edition

3319176897, 9783319176895

More Books

Students also viewed these Mathematics questions

Question

★★★★★

a. Let X1,... ,Xn be iid observations from an exponential (Î») pdf, where Î» has the conjugate IG(a, b) prior, an inverted gamma with pdf Show how to find a 1 -...

Answered: 1 week ago

Question

★★★★★

=+a. Determine the net present value for the two machines. Use the table of present values of an annuity of $1 in the chapter. Round to the nearest dollar.

Answered: 1 week ago

Question

★★★★★

Discuss the origins of behavior therapy.

Answered: 1 week ago

Question

★★★★★

Debra and Merina sell electronic equipment and supplies through their partnership. They wish to expand their computer lines and decide to admit Wayne to the partnership. Debra's capital is $200,000,...

Answered: 1 week ago

Question

★★★★★

7- Find the expected return of the portfolio E(r) and the p?having these data: wp=.40 E() = .10 SD= .2 WE-.60 E) = .15 - 3 1

Answered: 1 week ago

Question

★★★★★

$Sams Sport makes several lines of tennis racquets. Recently, Sam decided to carry an entire line of graphite racquets. He has done his competitive analysis and found that his compitotrs products...

Answered: 1 week ago

Question

★★★★★

Solve and indicate whether the following series are convergent or divergent Ans: Diverges by Limit Comparison Test 0 3 m=1 7" n! Ans: Converges by Integral Test 8 h= n=1 Thus, this diverges by the...

Answered: 1 week ago

Question

★★★★★

A farmer installed a tank for the purpose of keeping the hot water for his residential house in the farm. The tank is made of mild steel of wall thickness 10 mm and contains water at 90oC. Calculate...

Answered: 1 week ago

Question

★★★★★

Explain why you chose the specific article? How is it relevant to the current health care landscape? Discuss current event from the perspective of a health care administrator. Document your thoughts...

Answered: 1 week ago

Question

★★★★★

7. A series of transactions for Ace Repair is given below. Use the chart to show the effect of each of the transactions on assets, liabilities, and owner's equity by placing an x in the appropriate...

Answered: 1 week ago

Question

★★★★★

(CLO3) Sam and Mike are discussing using a new project management framework. Mike mentions that no matter what the team should always be willing to try new things. Sam asks Mike to focus on the pros,...

Answered: 1 week ago

Question

★★★★★

You arrive at your office and your boss informs you that you need to lead a project evaluating whether behavioural change techniques can help to address the challenges of climate change. She is...

Answered: 1 week ago

Question

★★★★★

8. Give an example of how the scarcity principle can be used to influence others.

Answered: 1 week ago

Question

★★★★★

2. A Soviet invasion of Poland would lead to the severing of diplomatic relations between the United States and the Soviet Union.

Answered: 1 week ago

Question

★★★★★

1. Diplomatic relations between the United States and the Soviet Union would be severed in 1993 than that

Answered: 1 week ago

Previous Question Next Question