QMS 102 Study Guide - Final Guide: Horse Length, Stol, Quartile

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Clare Chua

Document Summary

Ordinal- are categorical data where there is a logical ordering to the categories: the simplest ordinal scale is a ranking. Interval- 0" is only an arbitrary reference point 0" does not mean nothing the interval scale of measurement only permits mathematical operations of addition and subtraction. Ratio- 0" does mean the absence of the characteristic being measured, 0"= nothing". Stems: should be from 6 to 13 stems, should be consecutive numbers or repeated numbers. The numbers may each be repeated twice or 5 times: units must be indicated if stem not be taken at face value, there must be at least one leaf associated with the first and the last stem. Leaves: the leaf for each data value is the next single digit after the stem. Note: when the stems are repeated twice, the leaves 0-4 go with the first stem and the leaves 5-9 with the second. (this order is reversed when the stems are negative values).