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Chapter 1- Introduction to Data

# Chapter 1- Introduction to Data - Chapter 1 Introduction to...

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Chapter 1 – Introduction to Data Professor: Dai-Trang Le January 8, 2014 Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 1 / 32

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Today’s Agenda 1 MyStatLab Demo 2 What are Data? 3 Observational and Experiment Design 4 Type of variables Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 2 / 32
MyStatLab Demo MyStatLab http://www.mystatlab.com/ As of today over 50 students registered in MSL for Lecture 2 and 75 for Lecture 3. There are currently three assignments in MSL for this week, Orientation, Homework 1, and Quiz 1. These cover up to chapter 2. Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 3 / 32

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MyStatLab Demo MyStatLab Demo Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 4 / 32
MyStatLab Demo Demo - Data Table in Homework Problems Problem 9 in Orientation Assignment supplies a data set. You can make a copy or open the data in StatCrunch to perform calculation. Ex: You can sum up all the numbers. Question 11 in HW 1 provides a data set to make a bar graph . Data are given in summarized format. Perform: Graph > Bar Plot > with summary Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 5 / 32

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MyStatLab Demo Demo - Data Table in Homework Problems Problem 13 requires calculaltion of percentages from raw data. Perform: Data > Compute Expression Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 6 / 32
MyStatLab Demo Demo - StatCrunch Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 7 / 32

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MyStatLab Demo Multimedia Library: HTML eBook Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 8 / 32
What are data? Statistics “Statistics is the science of data, a way of reasoning along with a collection of tools and methods designed to help us understand the world.” What are statistics? Statistics are particular calculations made from data. Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 9 / 32

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What are data? Statistics “Statistics is the science of data, a way of reasoning along with a collection of tools and methods designed to help us understand the world.” What are statistics? Statistics are particular calculations made from data. Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 9 / 32
What are data? Statistics “You can prove anything with Statistics?” A. TRUE B. FALSE Statistics gets no respect. Just a statistics trick ”. “Th ere are three kinds of lies: lies, damned lies, and statistics .” Statistics courses are usually not students’ first choice for a fun elective class. Professor: Dai-Trang Le Chapter 1 – Introduction to Data January 8, 2014 10 / 32

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What are data? Statistics “You can prove anything with Statistics?” A. TRUE B. FALSE Statistics gets no respect.
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