1. Goal Sharing Team Training Statistical Thinking and Data Analysis (II) Peter Ping Liu, Ph D, PE, CQE, OCP and CSIT Professor and Coordinator of Graduate Programs School of Technology Eastern Illinois University Charleston, IL 61920

2. Graphical Presentation of Data One picture is worth a thousand words.

3. Tally Chart WeightTally 200 - 209/ 190 - 199 180 – 189/// 170 – 179 160 – 169// 150 – 159//// 140 - 149/// 130 – 139///// // 120 – 129///// ///// // 110 – 119///// ///// ///// // 100 – 109/ 90 – 99///

5. Histogram Application (1): Normal

6. Histogram Application (2): Abnormal

7. Statistical Problem Solving Significant deviation from usual distribution indicates problem(s) existing in the process.

9. Frequency Distribution If we collect enough number of observations, the polygon will become smooth.

10. Statistical thinking VI: Central tendency (most probable outcome) defines the location of the distribution.

11. Statistical thinking VII: Spread or dispersion defines the scale of the variation (variability).