QMS 102 Lecture Notes - Lecture 2: Sorting, Ogive

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Nursel Ruzgar

Document Summary

Stem values must be consecutive or repeated numbers, can be repeated 2x or 5x. One leaf for first and last stem. Unit must be indicated if stem is not face value. When stem repeated 2x leaf 0-4 go to first stem leaf 5-9 go to second stem. When stem repeated 5x leaf 0-1 first stem leaf 2-3 second stem leaf 4-5 third stem leaf 6-7 fourth stem leaf 8-9 fifth stem. Evenly spaced, nothing between numbers ( - , ) Summary table where data is arranged into numerically ordered classes: number of classes, 5-10 classes in final frequency distributions, notations for indicating classes, and under (ex. 260 and under 270: numerical values used in designated classes when using and under notations are called boundaries, close-ended classes, has lower & higher boundary, class width (cw, cw = upper boundary lower boundary.