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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)
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..
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.
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..
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
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
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 ..
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
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
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.
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.
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.
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
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