Survey

# Download Intro to Statistics

Document related concepts

no text concepts found

Transcript

MATH 1107 Elementary Statistics Lecture 1 Introduction to Statistics MATH 1107 - Introduction • About this course – Objectives – Assignments, Project & Grading Policy – Course Syllabus & Schedule – Use of Internet Site and EXCEL • About You – Course Expectations MATH 1107 - Introduction Why I think Statistics is important: • Nothing Kills an Opinion Like a Number; “Data trumps intuition. Instead of using our intuition, we experiment on the live site and let our customers tell us what works for them” – Director of Data Mining at Amazon (page 8) • Stats is the basic medium for communication of data; “Statistical thinking will one day be as necessary for efficient citizenship as the ability to read and write.”- H.G. Wells • A basic understanding of Stats (and EXCEL) is required to do anything in any discipline well. MATH 1107 - Introduction Statistics and Decision Making: Intelligence Design Choice MATH 1107 - Introduction Data assumes different forms – it answers the questions of Who, What, When, Where, Why and How: •Census •Sample •Parameter •Sample •Qualitative •Quantitative •Discrete •Continuous MATH 1107 - Introduction 1. Nominal – Categorical • Gender • Colors 2. Ordinal – Categorical with Order • Course Grade • High/Medium/Low 3. Interval – No Natural Starting Point • Temperature 4. Ratio – Meaningful differences and True zero • Price of textbooks • Weight of textbooks