Lecture Notes on Introductory Statistics‚ I (P.P. Leung) Lecture notes are based on the following textbook: N.A. Weiss (2012)‚ Introductory Statistics‚ 9th edition‚ Pearson. Chapter 1 The Nature of Statistics 統計本質 §1.1 Two kinds of Statistics §1.4 Other Sampling Designs (其他抽樣方法) Chapter 1 The Nature of Statistics 統計本質 What is Statistics? 何謂統計? From Wikipedia‚ the free encyclopaedia: Statistics is a mathematical science pertaining to the collection‚ analysis‚ interpretation
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The juvenile justice system was created for a simple but specific reason‚ and that was to have a separate system for juveniles. Juveniles were treated as adults before the first juvenile court was established in the 1800’s. According to the book the juvenile system was created to focus on “rehabilitation of youthful offenders” (Lawrence & Hemmens‚ 2008). I think there are two systems for a reason‚ but they are different in a lot of ways. One the big difference is age‚ most juvenile are under the
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Juvenile diabetes‚ often called type one diabetes‚ is when a person’s pancreas stops producing insulin which is needed to allow sugar to produce energy. People with juvenile diabetes often have times of struggle‚ from the diagnosis‚ stereotyping‚ and all of the responsibility they earn on the journey. From the moment someone is diagnosed with juvenile diabetes it changes his or her’s whole life. A person has to get used to the change‚ monitoring blood sugar‚ giving insulin‚ and other day to
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There may be different techniques that a juvenile probation officer could use to deter a juvenile from violating their probation. The techniques could be tailored for the personality type or the surrounding circumstances for different offenders. For a chronic repeat offender‚ it would be important to keep good records so that the officer can measure the success of the relevant processes or practices that have been tried before. While the offender is undergoing counseling or different recommended
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Outline and assess whether crime statistics give an accurate measure of actual crime Crime is seen as behaviour that breaks the law in a particular society. What is considered to be a crime also changes over time‚ often as a result of government legislation and also people’s attitudes‚ this may have an effect on how crime is recorded. Because the definition of ‘crime’ changes frequently‚ this may not paint an accurate picture of what crimes are committed and in a result of this‚ sociologists talk
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collection of crime statistics? There are two main sources for published crime statistics; the British Crime Survey‚ a face to face victimization survey‚ covering experiences of crime in the previous twelve months‚ and police recorded crime which is supplied by 43 different territorial police forces on a monthly basis (Home Office‚ 2011). Both sources have different strengths and weaknesses such as police discretion for recording certain crimes or the time period covered in the British Crime Survey (Walker
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STUDENT PERFORMANCE DETERMINANTS IN A BUSINESS STATISTICS COURSE AT A LARGE URBAN INSTITUTION CIS 3300 November 30‚ 2012 INTRODUCTION This research paper discusses the effects of several different factors on a student’s success in a Business Statistics course. The different variables include areas related to the student’s academic factors as well as factors related to the student’s personal life. The academic related variables are: course of study‚ study hours per week‚ semester credit
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“ Statistics should be interpreted with caution as they can be misleading; they can both lie and tell the truth” Statistics are being used everyday to describe things in working and studying areas to show the productivity of the results they are hoping for. Therefore‚ people observe and notice alternative objects the world around. Throughout this fact‚ similarities and differences are such features that could endanger or turned out as advantages. This is called statistics. Explanations
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Chapter 2: Descriptive Statistics CHAPTER 2: Descriptive Statistics 2.3 [LO 1] 28 2007 #1 28 71‚273.93 58‚069‚987.70 7‚620.37 59490 87970 28480 Distribution is skewed right. Descriptive statistics count mean sample variance sample standard deviation minimum maximum range Stem and Leaf plot for stem unit = leaf unit = Frequency 2 9 13 4 28 #1 10000 1000 Stem 5 6 7 8 Leaf 99 123446677 0000112444447 1377 Distribution is more normally shaped in 2007. 2.5 [LO 2] a. We have 2
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Edayan QNT/351 May 3‚ 2013 Rich Haller Statistics in Business Statistics is a way of gathering‚ analyzing‚ interpreting and presenting data so that it becomes more meaningful. It helps convert raw data into useful information. Statistics is therefore a collection of information. Statistics can be presented in graphical form to make it more appealing and easily understandable by the users. Statistics can be descriptive or inferential. Descriptive statistics have to do with methods in a data set that
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