ECE 302 Problem Set 9 Fall 2013 The following problems have been selected from the course text. 4.78 In a large collection of wires‚ the length of a wire is X‚ an exponential random variable with mean 5π cm. Each wire is cut to make rings of diameter 1 cm. Find the probability mass function for the number of complete rings produced by each length of wire. 4.85 The exam grades in a certain class have a Gaussian pdf with mean m and standard deviation σ. Find the constants a and b so that
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0 26.6 27.5 Net Income 13.5 10.5 7.7 Did Vallejo’s net income as a percent of sales increase‚ decrease‚ or remain unchanged over the 3 year period. Provide numerical support for your answer. Sales – Cost of Goods Sold – Expenses = Net Income 100 – 64.8 – 27.5 = 7.7 for 2010 100 – 62.9 – 26.6 = 10.5 for 2011 100 – 60.5 – 26.0 = 13.5 for 2012 During the 3 year period of 2010-2012‚ the net income increased as a percent of sales for the Vallejo Company due to the decrease as a percent of sales
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Problem Set 1 Ben Polak‚ Econ 159a/MGT522a. Four Questions due September 19‚ 2007. 1. Strictly and Weakly Dominated Strategies? What is the de nition of a strictly dominated strategy? What is the de nition of a weakly dominated strategy? Give an example of a two-player game matrix where one player has three strategies‚ one of which is strictly dominated; and the other player has three strategies‚ one of which is weakly (but not strictly) dominated. Indicate the dominated strategies. 2. Iterative
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Problem Set 1 Macroeconomics‚ ECON 2123 (Instructor: Partha Sen; TA: Peter Tsui) ------------------------------------------------------------------------------------------------------------------------------------ Posted: Friday‚ 19 September 2014 Due: 5:00 PM Friday‚ 26 September 2014 (Submit your homework into the homework collection box outside the department office) 100 marks total Part I: True/False/Uncertain (20 marks‚ 4 marks each) 1. GDP is the value of all goods and services produced
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Econ Notes 3: Exam Thursday‚ March 27th Chapter 16: Money Money- used to purchase things Weath- not money until converted into form that can be used to purchase things Liquidity- Purchasing power Functions of Money: (515) 1. Medium of exchange 2. Store of Value- can store it 3. Unit of account - way of establishing relative value 4. A Standard of Differed Payment- allows exchange over period of time Our Money • Commodity Money- money that has value outside of being used for money
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ECONOMETRICS: PS5 PROBLEM SET 5: ESTIMATION PROBLEMS 1 We have the following variables: Y: Food expenditure in USA. X: Family income. P: Price index. Two different regressions are estimated with the following estimation results (standard errors are in brackets): Coefficient for Regression X Y/P Y / X; P 0.112 (0.003) Coefficient for P 2.462 (0.407) -0.739 (0.114) Determination coefficient 0.614 0.978 Assuming that the true equation for Y includes both X and
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ECSE 443- introduction to Numerical Methods in EE Practice Problem Set – Chapter 4 (Note: This problem set is for extra practice. It is not for credit‚ and not to be handed in) Question 1: Suppose that in a study‚ several measurements were made to determine a particular quantity for different values of . The collected data are summarized in the following table: 1.0000 5.8823 1.5000 2.0000 2.5000 3.0000 3.5000 4.0000 4.5000 5.0000 5.5000 6.0000 8.8823 17.8821 11.8822 14.8826 26.8825 24.8822
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Department of Economics Economics 011 Section 14 Prof. Steve Suranovic Fall 2012 Problem Set #2 – Answers Answer all of the following questions from the book and those below. HW #2 is due in class on Wednesday Feb 22nd . A. Questions from Text and Readings R&T Chapter 2-5 (online)‚ Chapter 2.4 Review and Practice (in printed textbook); Concept Problems 2‚ 3; (for Extra Practice complete Numerical Problems 1 – 5 (not required for HW1)) CP2. Why does the downward-sloping production possibilities
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Problem Set 2 Name: __________________________________________ Problem Set 2 is to be completed by 11:59 p.m. (ET) on Monday of Module/Week 4. 1. The following table presents data for wages in the market for internet security professionals. (HINT: in the labor market the roles are reversed. Those who want to hire labor are the demanders. The workers enter the work force providing labor to the market place so they are the suppliers.) Wage Quantity Demanded Quantity Supplied $50‚000
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consumption axis‚ as is the case in Figure 3. Thus‚ when the price of leisure falls (i.e. leisure becomes more affordable)‚ Europeans are more willing to substitute out of consumption (and labor supply) and into leisure. Problem Set 2: Suggested Solutions 2 Taxes in the Real Intertemporal Model (40 Raw Points) Taxes in the Real Intertemporal Model This problem studies the effects of a permanent (lump sum) tax decrease on macroeconomic variables such as This problem studies the effects of a permanent
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