Health Sciences 3801A/B Chapter Notes - Chapter 2.1: Exploratory Data Analysis, Line Graph

• School: Western University
• Department: Health Sciences
• Course: Health Sciences 3801A/B
• Professor: Andrew Johnson

Document Summary

Section 2. 1 - stem-and-leaf graphs (stemplots), line graphs, and bar graphs. Bar graphs a graph that consists of bars that are separated from each other. Leaf consists of a final significant digit. Line graph a graph that is useful for specific data values, often has an x-axis (horizontal) with data values and a y-axis (vertical) with frequency points. Outlier an observation of data that does not fit the rest of the data - also known as an extreme value. The stemplot graph is a simple graph that stems from exploratory data analysis and is often used for small data sets. The observations of data are divided into a stem and a leaf. 23 has stem two and leaf three and 432 has stem 43 and leaf two.