Create a portfolio using the four stocks and information below:

Expected Return Standard Deviation Weight in Portfolio
Stock A 23.00% 16.00% 10.00%
Stock B 18.00% 10.00% 25.00%
Stock C 28.00% 24.00% 23.00%
Stock D 14.00% 26.00% 42.00%

Correlation (A, B) 0.5100
Correlation (A, C) 0.3700
Correlation (A, D) 0.0600
Correlation (B, C) 0.8800
Correlation (B, D) 0.3500
Correlation (C, D) 0.6100
(Do not round intermediate calculations. Record your answers in decimal form and round your answers to 4 decimal places. Ex. x.)

What is the variance of A?

What is the variance of B?

What is the variance of C?

What is the variance of D?

What is the Correlation (A, A)?

What is the Correlation (B, B)?

What is the Correlation (C, C)?

What is the Correlation (D, D)?

What is the Covariance (A, A)?

What is the Covariance (A, B)?

What is the Covariance (A, C)?

What is the Covariance (A, D)?

What is the Covariance (B, A)?

What is the Covariance (B, B)?

What is the Covariance (B, C)?

What is the Covariance (B, D)?

What is the Covariance (C, A)?

What is the Covariance (C, B)?

What is the Covariance (C, C)?

What is the Covariance (C, D)?

What is the Covariance (D, A)?

What is the Covariance (D, B)?

What is the Covariance (D, C)?

What is the Covariance (D, D)?

What is the expected return on the portfolio above?

What is the variance on the portfolio above?

What is the standard deviation on the portfolio above?

Define the marginal rate of substitution between two goods (x and y). if a consumer’s preferences are given by u(x, y) = x3/4y1/4, compute the consumer’s marginal rate of substitution as a function of x and y. calculate the mrs if the consumer has chosen to consumer 48 units of x and 16 units of y. show your work. (use the back of the page if necessary.

Will give brainliest and 100 to best and correct project: benefit analysis study: small business expansion you are the owner of a small business that offers advertising services for your local homebuilding professionals. originally you were the only employee, working at your desktop at home. now your business is growing and you need to add more workers. the first assessment of your current situation: one worker, one desktop computer, one modem, one printer/scanner, one phone line (dsl). you also created a draft situation of what technology you will need if you add two more workers (three workers including yourself): three computers, one router, one printer/scanner, one phone line (wireless). do a one-page benefit analysis study that: compares the cost of adding two desktops vs. one or two laptops compares the cost of replacing the modem with a router/modem. compares the cost of building a wan vs. a lan or a vpn summarizes the total cost of maintaining your home office as the only computing space for your three-worker company. compare this cost with the option of building a network that includes your home office and two satellite locations. here are some questions you may want to consider: do i need a firewall to protect my company's data? are my two new workers' job responsibilities primarily mobile? are they going to be doing enough work in the field to justify owning laptops? what software needs to be installed in their computers for network connections (desktop vs. laptop)?! i will give 100 points and ! !

Describe how amazon eliminates the problem of shipping costs