Sample Midterm I Econ 3790: Statistics for Business and Economics Instructor: Yogesh Uppal You are allowed to use a standard size (8.5*11) cheat sheet and a simple calculator. Please write all the answers with a BALL-POINT PEN or an INK PEN. If you have any questions during the exam‚ please raise your hand. GOOD LUCK!!! I am sure you guys will do great. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question and write it in the space given
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best alternative in the following: Q.1 In the relational modes‚ cardinality is termed as: (A) Number of tuples. (B) Number of attributes. (C) Number of tables. (D) Number of constraints. Ans: A Q.2 Relational calculus is a (A) Procedural language. (C) Data definition language. Ans: B Q.3 The view of total database content is (A) Conceptual view. (C) External view. Ans: A Q.4 Cartesian product in relational algebra is (A) a Unary operator. (B) a Binary operator. (C) a Ternary operator. (D) not defined
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2.2.3 Data Collection Another crucial stage that cannot be ignored is deciding on the type and nature of data that is to be used in the research. Ideally‚ there are three types of data that a researcher can collect using primary research. First‚ the data can be quantitative in nature. This refers to data that is capable of been converted into a numerical value (Kothari 2004). One of the benefits of quantitative data is that its measurement does not require critical reviews‚ making it easy to collect
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artifacts should be used to show a country’s past history‚ opponents may say otherwise. Opponents of collecting ancient artifacts may say it might be disrespectful to collect artifacts that are blessed‚ but then it shouldn’t be ignored‚ because then that would be more disrespectful than it originally was. Archaeologists should be allowed to collect every piece of ancient artifacts in the world to deepen our understanding of all the cultures there ever were‚ this may help diversify the local economy and contribute
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Data Warehousing and Data mining December‚ 9 2013 Data Mining and Data Warehousing Companies and organizations all over the world are blasting on the scene with data mining and data warehousing trying to keep an extreme competitive leg up on the competition. Always trying to improve the competiveness and the improvement of the business process is a key factor in expanding and strategically maintaining a higher standard for the most cost effective means in any
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The Woodspurge The poem woodspurge uses different tools of poetry that are common in very good ways which makes a poem what is it gives it a back bone‚ a structure some might say its format or foundation but to me it is to enhance and to impasses a poem and to make it as relatable and as descriptive as possible. One of the tools used was a meter In poetry‚ meter is the basic rhythmic structure of a verse or lines in verse. Many traditional verse forms prescribe a specific verse metre‚ or a certain
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“With These Words I Can Sell You Anything” is an article written by William Lutz‚ explaining the tactics of marketers to sell their products. It is an excerpt from his book Doublespeak‚ published in 1990. William Lutz has been called “the George Orwell of the 1990s”‚ and indeed many of his books are titled in direct reference to Orwell’s works. Lutz claims in his article that there’s a big conspiracy where the people trying to sell us things are giving us ineffective products disguised as something
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Is the strike no longer necessary? Throughout the years conflict has occurred between managers and workers resulting in industrial action taken either individually or as a collective form. The most favoured form of industrial action is the strike where employees demonstrate the importance of the issue concerned by stopping work and leaving the workplace. Strikes occur for a number of reasons one being pay. Strike patterns have changed over the years showing a decline in numbers that are due to
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1. Cite and explain 4 important events that led to homosapiens/ sapiens from common ancestors. Important events that led to homo sapiens from common ancestors are PHYSICAL CHANGES which are considered as CRUCIAL CHANGES for the human evolution. First‚ over 45Million years ago ancestors stood up with their two legs. Using this ability to walk around and be distinct with the other animals like chimps. Second‚ it’s over 3Million years ago that ancestors became clever with their hands. This was the
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Turning data into information © Copyright IBM Corporation 2007 Course materials may not be reproduced in whole or in part without the prior written permission of IBM. 4.0.3 Unit objectives After completing this unit‚ you should be able to: Explain how Business and Data is correlated Discuss the concept of turning data into information Describe the relationships between DW‚ BI‚ and Data Insight Identify the components of a DW architecture Summarize the Insight requirements and goals of
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