QMS 102 Study Guide - Radial Tire, Random Variable, Retread

• School: Ryerson University
• Department: Quantitative Methods
• Course: QMS 102
• Professor: Changping Wang

Document Summary

For numerical data, we can use frequency histogram and relative frequency histogram to get understanding of the shape of the distribution. In this section, we introduce a new concept: the box- whisker-plot. The box-whisker plot is a graphical display that is used to get a general picture of a set of data. The main difference from the box-whisker- plot and previous graphical display is that the box- whisker-plot shows some the values of descriptive statistics. + sign: to draw the whiskers, we follow a)they cannot past the inner fences; b)they must end at a data point. Fence; (3) all data values that fall between the fences are call suspected outliers, using o to indicate them; all data values that lie beyond the outer fences are call outliers, using * to indicate them. The test score of 15 employees enrolled in a cpr training course are listed as follows: