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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What are some of the financial decisions that people face? What are trade-offs? What are some of the trade-offs that you may face? Some of the financial decisions that people face are buying a house‚ going to college‚ and buying a car. Trade offs are a balanced achieved between two desirable but incompatible features or a compromise. Some of the trade offs that you may face are going to college‚ making payments on a car‚ and loaning money. Going to college is a trade off cause your basically saying
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an education in Jamaica is viewed as primarily a female activity. This cultural attitude encourages males to leave school early. In 2008‚ girls outnumbered boys in secondary school by a ratio of 1.04:1. At the same time‚ boys were more likely to have to repeat a year of school. Only 16% of boys passed five or more Caribbean Secondary Education Certificate exams compared to 30% of girls. Boys outperformed girls only in vocational subjects and physics. The report cites four key challenges in boys’
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Master Thesis Electrical Engineering November 2011 Security Techniques for Protecting Data in Cloud Computing Venkata Sravan Kumar Maddineni Shivashanker Ragi School of Computing Blekinge Institute of Technology SE - 371 79 Karlskrona Sweden i This thesis is submitted to the School of Computing at Blekinge Institute of Technology in partial fulfillment of the requirements for the degree of Master of Science in Software Engineering. The thesis is equivalent to 40 weeks of full time studies.
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students face:•Language problems: This is the most common among international students and especially among those whose native language is not English. Along with this the problem‚ understanding ascent and slangs adds up more to it. •Cultural differences: Due to difference in the culture also‚ some problems come. For e.g. Here people are more open with each other no matter its male or female‚ which is not the case in countries like Pakistan (there it’s very severe problem). •Funds problem: Another
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It was the great Martin Luther King Jr. who once stated‚ "Sometimes a law is just on its face and unjust in its application." He was right in his beliefs as a law may appear correct on paper but when practiced‚ it becomes unfair and seemingly no longer applicable to the situation. In my own experience‚ King’s statement came alive when a close friend was unjustly sentenced. It was through this that I discovered to never put myself in a position where I could be made an example of. It was more then
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Secondary Data Sources Linda Dedo University of Phoenix June 3‚ 2012 Secondary Data Sources Health care consulting requires detailed market study from multiple angles. Various perspectives must be considered if the study is to be counted valid within the current market (Berkowitz‚ 2006). To determine market share and saturation‚ multiple tools are available. When a marketer begins reviewing current resources several important points should receive credence. Primary data sources are those
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Must Be A Woman’s Job Historically‚ men have been the ones who mainly called the shots prior to World War II. They were the ones waking up morning after morning to go to work so that they could support their families financially by earning money to put food on the table‚ supply a roof over their heads‚ and provide the need for clothes on their backs. However‚ when the demand for more personnel presented itself during the post-World War II era‚ women began to challenge the meaning of masculinity
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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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DATA COLLECTION Business Statistics Math 122a DLSU-D Source: Elementary Statistics (Reyes‚ Saren) Methods of Data Collection 1. 2. 3. 4. 5. DIRECT or INTERVIEW METHOD INDIRECT or QUESTIONNAIRE METHOD REGISTRATION METHOD OBSERVATION METHOD EXPERIMENT METHOD DIRECT or INTERVIEW Use at least two (2) persons – an INTERVIEWER & an INTERVIEWEE/S – exchanging information. Gives us precise & consistent information because clarifications can be made. Questions not fully understood by the respondent
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