Definition: Statistics is the study of the collection‚ organization‚ analysis‚ interpretation and presentation of data. It deals with all aspects of this‚ including the planning of data collection in terms of the design of surveys and experiments. A statistician is someone who is particularly well-versed in the ways of thinking necessary for the successful application of statistical analysis. Such people have often gained experience through working in any of a wide number of fields. Some
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Chapter 1: Forouzan Data Communications and Networks TRUE/FALSE 1. Protocols are rules that govern a communication exchange. ANS: T 2. The performance of a data communications network depends exclusively on the skills of the users. ANS: F 3. Viruses are a network timing issue. ANS: F 4. Protection of data from a natural disaster such as a tornado is a network management issue. ANS: F 5. Data communication is the transfer of data from one device to another via some
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Assignment #2 EC1204 Economic Data Collection and Analysis Student No. 110393693 Part 1: Question 2 From analysing the Data on the Scatter Plot the relationship between the GDP and the Population of Great Britain from 1999-2009 appears to be a moderate positive correlation relationship. Both variables are increasing at a similar rate and following a similar pattern which would indicate this relationship. This relationship would tend to be a positive one as more people are available to the
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Describe how marketing techniques are used to products in two organisations Kellogg’s and Tesco Growth strategies To grow as an organisation Kellogg’s and Tesco will use different strategies. These include diversification where the organisation effectively enters a new market. Tesco have done this where they have gone from just selling products in their shops to selling petrol‚ insurance and having their own mobile network. Kellogg’s have also done this as they have gone from selling cereals
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NSA Phone Records Source 1: Background Information Carroll‚ Lauren‚ and Kirby Wilson. Fact-checking the NSA phone records program. Tampa Bay Times‚ 2015. Web. 17 Sept. 2015. President Barack Obama signed a law that notably looks back on September eleventh‚ the law that he signed was permission to allow the National Security Agencies to collect phone records. The ones who oppose the Patriot Act said that the NSA massive record collection is a direct violation of one person’s privacy and the Fourth
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Data Preprocessing 3 Today’s real-world databases are highly susceptible to noisy‚ missing‚ and inconsistent data due to their typically huge size (often several gigabytes or more) and their likely origin from multiple‚ heterogenous sources. Low-quality data will lead to low-quality mining results. “How can the data be preprocessed in order to help improve the quality of the data and‚ consequently‚ of the mining results? How can the data be preprocessed so as to improve the efficiency and ease
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PRINCIPLES OF DATA QUALITY Arthur D. Chapman1 Although most data gathering disciples treat error as an embarrassing issue to be expunged‚ the error inherent in [spatial] data deserves closer attention and public understanding …because error provides a critical component in judging fitness for use. (Chrisman 1991). Australian Biodiversity Information Services PO Box 7491‚ Toowoomba South‚ Qld‚ Australia email: papers.digit@gbif.org 1 © 2005‚ Global Biodiversity Information Facility Material
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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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contribute the hotels‚ such as Choice Hotels International company‚ which own 11 hotel brands: Comfort Inn‚ Comfort Suites‚ Quality‚ Sleep Inn‚ Clarion‚ Cambria Suite‚ MainStay Suites‚ Suburban Extended Stay‚ Econo Lodge‚ Rodeway Inn‚ and Ascend Hotel Collection has 6‚600 hotels under franchising (Stephen P. Joyce‚ 2012). In economic theories‚ the advantages of outsourcing the hotel building is to provide a use of the building with a lower cost and reduce the barriers to entry and exits for firms in the
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TYPICAL QUESTIONS & ANSWERS OBJECTIVE TYPE QUESTIONS Each question carries 2 marks. Choose the correct or 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
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