STA 205 Lecture Notes - Lecture 7: Box Plot, Standard Deviation, Popeyes Louisiana Kitchen
Document Summary
After completing this material, you should be able to: A quantitative variable measures observations and results in numeric responses with units. To summarize a quantitative variable, we need a new graphical display a bar graph cannot be used. We will first look at histograms for graphically summarizing quantitative data. A histogram for the collected data is given below: When summarizing or describing a distribution, the following four characteristics must be discussed: When asked to describe a distribution, make sure you address these four characteristics in context and in complete sentences. Let"s consider each of these four characteristics individually. When describing a distribution, the first think we should consider is what shape the distribution has. We will consider five common shapes (shown below): Once we know the shape of a distribution, it is common to summarize it by finding a typical value of the distribution these values are generally referred to as measures of center.
