Suppose that x and y are random variables such that ex 4

Assignment Help Econometrics
Reference no: EM13375854

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: EM13375854

Questions Cloud

Modelling stock returns in an oecd country the objective of : modelling stock returns in an oecd country the objective of this assignment is to estimate some alternative models of
For the following problems assume that under free trade ie : for the following problems assume that under free trade i.e. before any tariffs are imposedthe u.s. has a domestic shoe
Now assume that the us is a large country in this market : now assume that the u.s. is a large country in this market with the same supply and demand equations given in part ii
Small country tariffin the us supply and demand for a : small country tariffin the u.s. supply and demand for a particular good are given by the equationsqs 10pqd 105 -
Suppose that x and y are random variables such that ex 4 : suppose that x and y are random variables such that ex 4 ey 2 and varx vary 4. let zxy. 1. find ez 1 dp 2. assuming
Students are to choose a low income economy lic as : students are to choose a low income economy lic as classified by the world bank and write a brief report on the level
Country investment final casenbspthe woman in the dark suit : country investment final casenbspthe woman in the dark suit serious women always wear black suits leafed through the
1find a recent january 2012-march 2012 money and banking : 1.find a recent january 2012-march 2012 money and banking related article in the media the economist globe and mail
What average annual inflation rate would a monetarist : what average annual inflation rate would a monetarist expect if the fed maintained a growth rate of m2 10 per year for

Reviews

Write a Review

Econometrics Questions & Answers

  What price should you charge for a midsized automobile

the owner of a local Honda dealership. unlike other dealerships in the area, you take pride in your no haggle sales polict. Last year, your dealership earned record profits of $1.5 million. However, according to the local Chamber of Commerce, your..

  Calculate bwbs new long-run equilibrium demand curve

Determine the output level, price, and profits that will occur in long-run equilibrium. Assume a high-price, low-output scenario assuming a parallel shift of the firm's demand curve. Be sure to explain what you are doing and why.

  Write the incentive compatibility constraint

An L treatment costs the physician 100 in cash, an H treatment costs the physician 200 in cash. A physician's utility from consumption x is log(x). an L treatment leads to a good outcome with probability 0.4. An H treatment leads to a good outcome..

  What effective annual interest rate would you be paying

A used car delaer advertises financing at 0% interest over 3 years with monthly payments. You must pay a processing fee of $250 at signing. The car you like cost $6000. a) What is you effective annual interest rate

  Find the multiplier and the marginal propensity to consume

If in an economy a $150 billion increase in investment spending creates $150 billion of new income int he first round of the multiplier process and $105 billion in the second round, the multiplier and the marginal propensity to consume will be

  Calculate income-elasticity of demand coefficient of product

Use the arc-approximation formula to calculate the price-elasticity of demand coefficient of a firm's product demand between the (quantity, price) points of (100, $20) and (300, $10). (b) Calculate the cross-price elasticity of demand coefficient ..

  What equation describes the goods market equilibrium

Given an economy that is described by the following equations: C=2,000+0.8(1-t)Y t=0.25 I=800-200i G=1200 L=0.2Y-100i M=45,000 P=150 What equation describes the goods market equilibrium

  What will be the equilibrium price and output

Suppose P=20-2Q is the market demand function for a local monopoly. The marginal cost is 2Q. The local monopoly tries to maximize its profits by equating MC= MR and charging a uniform price. What will be the equilibrium price and output

  Why the monopolist is in determination of price and output

The industry demand function for bulk plastics is represented by following equation: P = 800 - 20Q Where Q represents millions of pounds of plastic, The total cost function for the industry, exclusive of a required return on invested capital.

  Find the winner in each subgame perfect equilibrium for n

Two people take turns removing stones from a pile of n stones. Each person may, on each of her turns, remove either one or two stones. The person who takes the last stone is the winner; she gets $1 from her opponent.

  Calculate and interpret the z-score for a sales associate

Suppose annual salaries for sales associates from a particular store have a mean of $32,500 and a standard deviation of $2,500. a. Calculate and interpret the z-score for a sales associate who makes $36,000.

  Calculated the elasticity of demand for chocolate

Assume the point elasticity method. 1. Anna owns the Sweet Alps Chocolate store. She charges $10 per pound for her hand made chocolate. You, the economist, have calculated the elasticity of demand for chocolate in her town to be

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!

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