STA 2122 Chapter Notes - Chapter 3: Multimodal Distribution, Central Tendency, Frequency Distribution

29 views6 pages
School
Department
Course
Professor

Document Summary

Chapter three: although frequency distributions may be complex at times, it is often very useful to be able to summarize or describe the distribution with a single numerical value. However, we need to take care to select a value that is the most representative of the entiredistribution, that is of all of the individuals. This is what we mean by central tendency. Central tendency is a statistical measure that identifies a single score as representative of an entire distribution. The goal of central tendency is to find the single score that is most typical or most representative of the entire group. We will focus on three measures of central tendency: the mean, the median, and the mode. All are measures of central tendency, but for some distributions, some are more meaningful or appropriate than the others. We"ve already talked about how you would go about figuring this out from the data in a frequency distribution table.