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Lecture

STAB22 CHAPTER COMPILATION

124 Pages
232 Views

Department
Statistics
Course Code
STAB22H3
Professor
Ken Butler

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Description
CHAPTER 1 2 STATISTICS CHAPTER READINGSCHAPTER 1STATS STARTS HEREStatistics helps us to see the world more clearlyaccurately So What is Are Statistics GBOX What is Statistics sing form way of reasoning that uses collection of toolsmethods to help comprehend the worldWhat are Statistics pl form specific calculations made from dataWhat are data values but it takes into acct the context they came in datum is sing form GBOX 1very conspicuous to see ppl collecting data from us about us ex UPScollects data for every package it shipsdelivers and puts it all together in a large database2 Statisticshelps w making sense of the complicated world we live in ex by evaluating risk of GM foods that Canadian Food Inspection Agency is looking into ex by evaluating safetyeffectiveness of new drugs sent for approval to Health Canadaex predictingof AIDs cases ex customers likely to respond to sale in mall this discipline is needed whenever data is involved there is need to comprehend world Statistics in a Word 3Statistics is about VARIATION data varies bc we arent able to observe eth what is measured and is observed it is doneimperfectly bc humans are not perfectStatistics helps us to work with this variation by understanding it modelling itby doing this can see thro it thereby deciphering the underlying truthspatterns An seeing forest thro treesWhat is a central challenge of the Statistics discipline is making sense of variations in data 4 How does this Book Helpwhat is done w data can be better comprehended if pics are made for itbook goes thro entire process of thinking about prob findingshowing results telling others about discoveryeach step has data displayed to improve comprehensioninsight how to best comprehend Statistics is when it is put to use 5 3 Steps to doing Statistics correctlyTHINKknow how you are going to progresswhy SHOW the actual doing of calculations and making displays of data not the most impt ptTELLabout what has been learned cannot properly have done Statistics unless you have explained results to some1 that can comprehend conclusions that came from it 6 Where are we going section comes at every chapters beginning realworld questions that will be addressed w statistics and be doable after chapter is overStepbyStep section aka worked example applies new concepts learned in chapterFor Example box gives concise way of applying justlearnt ideasmethods give an idea as to how statisticans approach and solve probs show how to think about prob what to show and how to tell what it all means7 Just Checking section few short qs w little calculation fast way to make sure you have understood chapters basic ideas anss for these qs at end of chapter8 MATH Box understanding impt concepts is helped by knowing formulasprotocols for Statistics and why they work in the case they are used gives concise clear explanation of math that supports the statistical method used 9 ActivStats box signalling that the multimedia available in DVD can help better understand what is being said for this paragraphsection etclook for corresponding activity in chapter on DVD
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