Professor Mumford mumford@purdue.edu Econ 360 - Fall 2012 Problem Set 1 Answers True/False (30 points) 1. FALSE If (ai ‚ bi ) : i = 1‚ 2‚ . . . ‚ n and (xi ‚ yi ) : i = 1‚ 2‚ · · · ‚ n are sets of n pairs of numbers‚ then: n n n (ai xi + bi yi ) = i=1 i=1 ai x i + i=1 bi yi 2. FALSE If xi : i = 1‚ 2‚ . . . ‚ n is a set of n numbers‚ then: n n n n n (xi − x) = ¯ i=1 n i=1 2 x2 i − 2¯ x i=1 xi + i=1 x = ¯ i=1 2 x2 − n¯2 x i where x = ¯ 1 n i=1 xi 3. TRUE If xi : i = 1‚ 2‚ . .
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6/28/2012 Number Systems Chapt. 2 Common Number Systems System Base Symbols b l Used by humans? Used in computers? Decimal 10 0‚ 1‚ … 9 Yes No Binary 2 0‚ 1 No Yes Octal 8 0‚ 1‚ … 7 No No Hexadecimal 16 0‚ 1‚ … 9‚ ‚ ‚ ‚ A‚ B‚ … F No No 1 6/28/2012 Quantities/Counting (1 of 3) Decimal 0 1 2 3 4 5 6 7 Binary 0 1 10 11 100 101 110 111 HexaOctal decimal 0 0 1 1 2 2 3 3 4 4
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Works Cited Bey‚ Amani. "Methods." Personal interview. 28 Jan. 2013. I interview Amani because she is a teenager guided by mentorship. She revealed to me how being mentored by positive‚ loving‚ and caring people has changed who she is as a person. She said “I see a big change in myself. It’s like my whole life I’ve been so angry and upset‚ and it was all because I was being misguided and I didn’t have the chance to become who I am now.” This interview helped me because It kind of showed me what
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Measuring Success As with all measurement systems and sub-systems‚ one focusing upon recruitment should be designed to manage and measure staff recruitment efficiency‚ effectiveness‚ and alignment with the culture‚ mission‚ and strategy of the organisation. Apart from surveys and interviews the following represent a few ideas on how the recruitment and selection process and/or its indicators can be measured: Lead time or Hiring cycle e.g. time taken to fill an employee vacancy from advertisement
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Finding Success and Happiness I’ve been asked what characteristics‚ beliefs and goals do I feel are important to become successful and happy in life. These are some ultimate questions that almost all of us have been asked many times whether it’s been through school‚ work‚ interviews‚ of simple talk between friends and family. Successful and happy most often mean you have a good base of wealth and accomplishments‚ smiling healthy happy family‚ a relatively non stressful and non demanding career
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“People with goals succeed because they know where they’re going.” –Earl Nightingale My Visionary self is usually the driving force of my ambitions for life‚ love‚ success‚ educational goals‚ and so on. I sometimes question whether this is a development of my own doing or has it been created by the interaction between others and myself. For instance my parents have been supportive and promising in all the decisions I make for myself. They have given me the ability to think for myself as well as
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Brand awareness is one of the biggest assets that athletic shoe companies as Nike‚ Adidas‚ Reebok‚ Fila can have. Brand awareness always brings a considerable advantage in getting consumer’s attention and making a good place in that shoe market. If a well established brand name effectively mentions the messages of quality and dependability. Thus consumers will automatically go to that brand relying on the image that has been created when they don’t have time to shop around. Athletic shoe manufacturers
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Writing a Successful Essay Every student has their own unique learning style. Throughout their years in education‚ a student uses their learning style to be successful that makes them feel comfortable. In Kathleen T. McWhorter’s Successful College Writing: Chapter 2 explains the different learning style. For an excellent paper from a group essay‚ one student should be a social‚ creative‚ and spatial learner. Social learners are oriented and prefer to study and learn with others. She says
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A Path to Success 25 years ago‚ my parents came to America looking for a new life. They both were teachers in Vietnam with highly educated backgrounds. However‚ when we got to America‚ everything changed. It is not about who you were‚ but it is about how we can learn to adapt to the new environment with a new culture. My parent had to struggle to make a living; I remember both of my parents had to work at a restaurant; cleaning tables and washing dishes. At that time‚ there was no dish washer
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Introduction We often hear or read about various success stories. But what is success and what criteria should organizations use to identify success? What factors lead to a successful project? The purpose of this article is to define project success criteria‚ clarify their difference with success factors and analyse their importance in project management methodology. One of the vaguest concepts of project management is project success. Since each individual or group of people who are involved in
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