Basics of Statistics Jarkko Isotalo 30 20 10 Std. Dev = 486.32 Mean = 3553.8 N = 120.00 0 2400.0 2800.0 2600.0 3200.0 3000.0 3600.0 3400.0 4000.0 3800.0 4400.0 4200.0 4800.0 4600.0 5000.0 Birthweights of children during years 1965-69 Time to Accelerate from 0 to 60 mph (sec) 30 20 10 0 0 Horsepower 100 200 300 1 Preface These lecture notes have been used at Basics of Statistics course held in University
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Statistical Description of Data The word ‘Statistics’ has been derived from the Latin word ‘Status’ which means a political state. It has also it’s either to the Italian word ‘Statista’ or the German word ‘Statistik’ each one of which means a political state. Statistics is defined as “the collection‚ presentation‚ analysis and interpretation of numerical data”. In olden days‚ the data that was collected and maintained for the welfare of the people belonging to the state. We are thankful
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Statistics can be defined as “ the science that deals with the collection‚ classification‚ analysis‚ and interpretation of numerical facts of data‚ and that‚ by use of mathematical theories of probability‚ imposes order and regularity on aggregates of more or less disparate elements” (Dictionary.com‚ LLC‚ 2008). Yet how do we use these specific elements in our everyday working lives? Many don’t realize the extent to which we as a culture base our decisions on statistics. We us them in something
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Statistics In Business Quantitative Analysis for Business September 22‚ 2013 Dr. John Kwagyan Introduction Statistics is a tool used in businesses for planning and measuring the various activities a business is engaged in. Descriptive and inferential statistics are two different types of statistics used in a business. Statistics is the most widely used quantitative method in business. Statistics describes a set of data and then it draws a conclusion from the data
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2 1. Basic Course Information: Course Code : SOWK2107 Course Title : Foundations of social work practice I – 4 year (Case & Group) 2. Course Instructor / Course Co-ordinator: Name Office phone email Dr. Choi Wai Man‚ Anna C0505 3917 2079 annachoi@socwork.hku.hk Dr. Law Yik Wa‚ Frances C0518 3917 5940 flawhk@hku.hk 3. Course Description This course aims to provide students with foundations of social work concepts‚ models‚ and theories in social work practice. Students
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Statistics in Business Quantitative Analysis for Business University of Phoenix Tanya Bailey April 22‚ 2013 Statistics can sometimes be difficult for some individuals. Understanding the concept of statistics‚ which is known as the science of data‚ may help a person in the business world. This involves classifying‚ summarizing‚ analyzing‚ collecting‚ and interpreting numerical information. The information gathered from statistics can help startup companies‚ and even
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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. The word statistics‚ when referring to the scientific discipline‚ is singular‚ as in "Statistics is an art. "This should not be confused with the word statistic‚ referring to a quantity (such as mean or median) calculated from a set of data‚ whose plural is statistics ("this
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Define Statistics Statistics is the practice of gathering‚ sorting‚ and categorizing numerical information in an organized format that can be used to acquire results to specific problems. According to McClave‚ Benson‚ and Sincich (2011)‚ “Statistics is the science of data. It involves collecting‚ classifying‚ summarizing‚ organizing‚ analyzing‚ and interpreting numerical information” (p. 3). Different Types and Levels of Statistics There are two types of statistics. One is descriptive which defines
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Introduction Learning goals ❖ What is meant by Statistics ❖ What is meant by Descriptive Statistics and Inferential Statistics ❖ Difference between Parameter & Statistic ❖ Types of Statistical Inferences What is meant by Statistics ? Statistics is the science of collecting‚ organizing‚ presenting‚ analyzing‚ and interpreting numerical data to assist in making more effective decisions. Types of Statistics Descriptive Statistics : • Methods of organizing‚ summarizing‚ and presenting
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are two main branches of statistics that include descriptive statistics and inferential statistics.Descriptive statistics gives numerical measures that describes the features of a given set of data. Inferential statistics on the other hand takes a sample of a given population‚ analyses the sample‚ and from it draw conclusions about the population .Malcolm.O.Asadoorian and Demetrius Kantarelis in their book: Essentials of inferential statistics argue that descriptive statistics organize ‚ summarize and
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