User Account

All Pages

Find e(z) and var(z)

Assignment Help Econometrics
Reference no: EM13158579

Suppose that X and Y are random variables such that E(X) = 4, E(Y) = 2 and var(X) = var(Y) = 4. Let Z=X+Y. 1. Find E(Z) (1 dp) 2. Assuming that X and Y are statistically independent find var(Z) (1 dp) 3. Assuming that cov(X,Y) = 2 find var(Z) (1dp)

Reference no: EM13158579

Questions Cloud

Maintaining an even balance of power : What is meant by the expression Balance of Power? Why was maintaining an even Balance of Power necessary to prevent war in Europe?
How is the flux of metabolites through the pathway : What feature is held in common by activators such as CAP, repressors such as LacI and enzymes subject to feedback inhibition? How does this feature contribute to regulation?
How much in revenues do businesses receive in the product : Suppose that business buy a total of $120 billion of the four resources (labor, land, capital, and entrepreneurial ability) from households. how much in revenues do businesses receive in the product market?
Intervention and treatment needs of family : Halfway houses, continuous care, and self help groups, and analyze intervention and treatment needs of family members and significant others affected by chemical dependency.
Find e(z) and var(z) : Find E(Z) (1 dp) 2. Assuming that X and Y are statistically independent find var(Z) (1 dp) 3. Assuming that cov(X,Y) = 2 find var(Z) (1dp)
What is the heat of vaporization of aluminum : At 25°C the heat of fusion of aluminum is 10.6 kJ/mol and the heat of sublimation is 326.4 kJ/mol. What is the heat of vaporization of aluminum at 25°C?
Compute the entropy change associated with the isothermal : Calculate the entropy change associated with the isothermal expansion of 5.40 mol of ideal gas atoms
United states has a which comparative disadvantage : Export subsidies levied by foreign governments on products in which the United States has a comparative disadvantage?
Repatriation : Repatriation is a current debate in the art world concerning the return of cultural objects to their native countries-how do you feel about repatriation? Do you believe that the objects should be returned regardless of circumstances, or do you think ..

Reviews

Write a Review

Econometrics Questions & Answers

  Quality of the research - analyze and discuss the results

Tabulate or graph the results; Analyze and discuss the results, noting any interesting, tures

  Question about mobile commerce

M-commerce also known as mobile commerce is being lumped in with several strategic internet plans. Explain some of the industries that are likely to use mobile commerce and how it is working for them.

  Filed for bankruptcy

In late 1990s more than twenty-five domestic steel firms have filed for bankruptcy. A combination of low values with strong competition through foreign competitors and so-called legacy expenses of unions are cited as the primary reason why so many s..

  What is the sample standard deviation of weights

What is the sample standard deviation of weights and calculate the change in weight

  Concentration rate and the herfindahl-hirschman index

If a corporation operates in a highly competitive industry and competes against many other companies. In the last some years, many new companies have entered the industry and firm now earns a return on investment very close to prevailing interest rat..

  Calculate the correct beta values

When watching television after dinner, you suffer memory loss. You can not remember what demonstrate you just watched or what you ate for dinner.

  Estimate the parameters in the model

Obtain standard errors of your estimates in part (a) using the Wild bootstrap with and using the bootstrap (with B = 9; 999) test H0 : 2 = 0 vs. H0 : 2 = 0 at the 5% level.

  Conduct a likelihood test

Assume that you have a normal distribution with mean =0 and variance =1. Assumee you control a likelihood test for mu =.07 and another likelihood test for mu =8.

  What is meant by the term path dependency

What is meant by the term, path dependency and discuss how path dependency has effected the development of two major Australian economic institutions.

  Discuss the statistical significance of the parameter

Wilpen Corporation, a price-setting form, manufactures nearly 80% of all tennis balls purchased in the United States. Wilpen estimates the U.S. demand for its tennis balls by using the linear specifications:

  Concepts of price elasticities

Groupon is a popular group purchasing and daily deals website. In a current promotion, a local restaurant to sold buffet vouchers at a step discount on Groupon's website.

  Finding the probability

An ice cream vendor sells three flavors: chocolate, strawberry, and vanilla. 45% of the sales are chocolate, while 30% are strawberry, with the rest vanilla flavored.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd