Professor Faleh Alshamari Submitted by: Wajeha Sultan Final Project Hashing: Open and Closed Hashing Definition: Hashing index is used to retrieve data. We can find‚ insert and delete data by using the hashing index and the idea is to map keys of a given file. A hash means a 1 to 1 relationship between data. This is a common data type in languages. A hash algorithm is a way to take an input and always have the same output‚ otherwise known as a 1 to 1 function. An ideal hash function is
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Module 5 Data Security What is a computer security risk? A computer security risk is any event or action that could cause loss of or damage to computer hardware‚ software‚ data‚ information‚ or processing capability. Some breaches to computer security are accidental‚ others are planned intrusions. Some intruders do no damage; they merely access data‚ information or programs on the computer before logging off. Other intruders indicate some evidence of their presence either by leaving a
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ISDATA ANALYSIS USING SPSS Overview • Variable • Types of variables Qualitative Quantitative • Reliability and Validity • Hypothesis Testing • Type I and Type II Errors • Significance Level • SPSS • Data Analysis Data Analysis Using SPSS Dr. Nelson Michael J. 2 Variable • A characteristic of an individual or object that can be measured • Types: Qualitative and Quantitative Data Analysis Using SPSS Dr. Nelson Michael J. 3 Types of Variables • Qualitative variables:
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insurance premiums at $2 trillion‚ stock market capitalization at over $10 trillion‚ and market value of listed bonds at about $10 trillion. In addition‚ practically every international trade in goods or services requires credit‚ capital‚ foreign exchange‚ and insurance" (Hill‚ page 198). With such vast amounts of money floating in and out of global markets [as in this example]‚ intermingled among numerous currencies‚ participating governments must have some way of protecting their investments and/or
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also analyzed additional data sets to include more variables like bedrooms and bathrooms in our investigation to test our hypothesis which shows that the results are consistent with the hypothesis. The population size‚ primary and secondary data‚ using unbiased information and applying ethics are also discussed in detail. Real Estate Data Set II As we begin the final stages of our project it is important to understand the process of applied research and how one or more variable
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Beginning What I am describing- The two tables showing ethnicity in national parks in England and wales. Main Brief description of the ethnic groups including the data provided- inaccurate Three chosen parks to discuss- Northumberland‚ South Downs and Exmoor National Parks and the averages of white ethnic as it is the highest group and mixed group as it is one of the lowest groups. Similarities with all the parks and differences. Summery Information the table doesn’t show What I have
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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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advantages some sociologists may finds when using participant observation (20 Marks) Participant observation is where the researcher joins the group or community they are studying‚ the researcher will participate in the activities over a period of time‚ to do this‚ the researcher attempts to become accepted in order to collect more valid research and to try and see the world in the way the group does. There are two types of participant observation‚ Covert and Overt. Covert participant observation is
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Data Collection Methods. Introduction Data collection is the process of gathering and measuring information on variables of interest‚ in an established systematic fashion that enables one to answer stated research questions‚ test hypotheses‚ and evaluate outcomes. Data Collection Techniques include the following: Personal Interviews Conducting personal interviews is probably the best method of data collection to gain first hand information. It is however‚ unsuitable in cases where there are
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What is the difference between hard and soft Human Resource Management? Improve HRM is an essential and vital function for organizational success. Areas within HRM like Manpower planning‚ Job analysis‚ Selection and Recruitment‚ Compensation and Benefits‚ Performance evaluations‚ Contract negotiations and Labor legislations are parts of hard HRM whereas functions like Organizational development‚ conflict management‚ human resource education‚ leadership development‚ organizational culture
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