STAT 100 Chapter 11: Chapter 11.docx

• School: Simon Fraser University
• Department: Statistics
• Course: STAT 100
• Professor: Derek Bingham

Document Summary

In any graph of data, look for an overall pattern and also for striking deviations from that pattern: outlier individual observation that falls outside the overall pattern of the graph, ignore outliers to see the overall pattern of a histogram, to describe the overall pattern of a histogram, give the center and the spread, see if the distribution has a simple shape that you can describe in a few words, describe center of distribution by its midpoint, midpoint the value with roughly half the observations taking smaller values and half taking larger values, describe spread of a histogram by giving smallest and largest values, ignoring outliers, distribution is skewed if it has a long tail on one side, look for, major peaks, not minor ups and downs in bars of histogram, clear outliers, not just for smallest and largest observations, rough symmetry or clear skewness.