1. Statistics 140: Introduction to Statistics Spring 2007

2. Overview: Class description and syllabus Course page & ella Textbook Homework & Grading Class attendance Exams Project Grades

3. Activity 1: Guessing Ages Groups of 3 - 4 Record sheet and card Record guess of person’s age by card number Record age guesses for all 10 cards Bring group record to front of class to share

4. Actual Ages Card 120 Card 235 Card 330 Card 446 Card 560 Card 626 Card 772 Card 833 Card 927 Card 1056

5. Group12345678910 A B C D E F G H I J K

6. Discussion Are there any patterns in the error? Bias Observational data Fundamental model

7. Course overview What is statistics? –“The art of making numerical conjectures about puzzling questions.” (Freedman) Important in all scientific research Involvement both inside and outside of class Homework from Ch.2: omit #6 & work together – it is a challenging assignment