= E(X2) – [E(X)] 2 5=E(X2)-1 E(X2) = 6 a) E[(2+X) 2] = E(4+4X+ X2) = 4 + 4 E(X) + E(X2) = 4+4+6 = 14 b) Var (4+3X) = E [(4+3X) 2] – [E(4+3X)] 2 = E (16+6X+9 X2) – [4+3E(X) ] 2 = 16+6 E(X)+9 E(X2) – 16 - 24 E(X) - 9 [E(X) ] 2 = 16 + 6 +9(6) -16 -24 -9 = 27 4. C (2‚0‚-3‚5‚10) v(0‚1)=1.25 v(1‚2)=1.25 ; v(2‚1) = 1/1.25 = 0
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5 1.1.4 4 - 81 + 1250 1 1 2(-) 4() =2 –3 +1 = 2– 1 – 3 3 + 1 1 = – 27 + 1 1 = – 25 1 1.2.1 4.3x = 36 (5) ∴4.3x = 36 4 4 ∴3x = 9 1 ∴3x = 32 1 ∴x = 2 1 1.2.2 16-x = 2 1 4(- x) =2 ∴2 (3) ∴ 2-4x = 2 ∴-4x = 1 1 ∴-4x = 1 -4 -4 ∴ x = - 1 (5) (3) [23] (3) (4) - = 53x + 2. 5x - 3. 5 52(2x – 1) 1 = 53x + 2. 5x - 3. 5 54x – 2 1 =5 3x + 2 + x – 3 + 1 – 4x + 2 = 52 1 = 25 1 1.1.2 3x + 3x + 2 3x + 1 = 3x + 3x .32 3x .3 1 = 3x(1 + 32) 3x.3 1 = 10 of/or 3 1 3 __ ___ ___ 1.1.3 4√ 8 + 3√ 18
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Jasmine Revolution ( Tunisia Revolution): On December 17‚ 2010 the protest started in the city of Sidi when a 26 year old fruit and vegetable vendor burned himself in front of municipal office. In following 3 weeks protests continued Ben Ali dismisses the minister of the interior. The move fails to quiet demonstrations. Ben Ali again came up with large concessions on state TV‚ but clashes grew more violent. State of emergency was declared with same ministries which outburst population even greater
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IT 205 Final Exam Please use as a study guide as the test may not be the same! Grade 100% The answers in Green with a checkmark are the correct answers. 1. The fundamental set of assumptions‚ values‚ and ways of doing things‚ that has been accepted by most of a company’s members is called its: * Culture * Values * Environment * Atmosphere 2. The field that deals with behavioral issues as well as technical issues surrounding the development‚ use‚ and impact
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country? Should they be? 3. a. Write down driving directions for going from your school to your home with the precision required by an algorithm. b. Write down a recipe for cooking your favorite dish with the precision required by an algorithm. 4. Design an algorithm for computing _√__ for any positive integer n.
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In this paperwork of FIN 515 Week 4 Midterm you will find the next information: 1. (TCO A) Which of the following statements is CORRECT? 2. (TCO G) Which of the following statements is CORRECT? 3. (TCO G) LeCompte Corp. has $312‚900 of assets‚ and it uses only common equity capital (zero debt). Its sales for the last year were $620‚000‚ and its net income after taxes was $24‚655. Stockholders recently voted in a new management team that has promised to lower costs and get the return
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Ashford 4: - Week 3 - Assignment Problem Set Week Three Complete the problems included in the resources below and submit your work in an Excel document. Be sure to show all of your work and clearly label all calculations. All statistical calculations will use the Employee Salary Data Set and the Week 3 assignment sheet. Carefully review the Grading Rubric for the criteria that will be used to evaluate your assignment. See comments at the right of the data set. ID Salary Compa
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straight line or curved? • What is the direction of the pattern? • How much do individual points vary from the average pattern? (How strong is the relationship?) • Are there any unusual data points? Copyright ©2011 Brooks/Cole‚ Cengage Learning 4 Direction/Form • Direction: – Two variables have a positive association when the – Two variables have a negative association when the – Two variables have a linear relationship when the Copyright ©2011 Brooks/Cole‚ Cengage Learning
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feet about the whole idea of passing on the idea of analyzing a writing text book. The schools main office I’m guessing due to past school intrusions was very skeptical of my presence even after I had gotten the ok from the assistant principle the week before. I was given a visitors name tag and was told to wait in the office until Mrs. Coyer came and got me‚ no bathroom breaks or leisure walks around campus were given prior to the administration seeing that Mrs. Coyer was expecting me. Arriving
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BUS 308 Week 4 assignment_ 9.13_9.22_and 12.10_12.18(a) 9.13 Recall that “very satisfied” customers gave the XYZ-Box video game system a rating that is at least 42. Suppose that the manufacturer of the XYZ-Box wishes to use the random sample of 65 satisfaction ratings to provide evidence supporting the claim that the mean composite satisfaction rating for the XYZ-Box exceeds 42. a. Letting represent the mean composite satisfaction rating for the XYZ-Box‚ set up the null hypothesis and the
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