NAME ________________________________________ DATE _____________ PERIOD _____
Reteach Select an Appropriate Display There are many different ways to display data. Some of these displays and their uses are listed below. Type of Display Bar Graph Box-and-Whisker Plot Circle Graph Double Bar Graph Double Line Graph Histogram Line Graph Line Plot Scatter Plot Stem-and-Leaf Plot Venn Diagram
Best Used to… show the number of items in specific categories show measures of variation for a set of data compare parts of the data to the whole compare two sets of categorical data compare change over a period of time for two data sets show frequency of data divided into equal intervals show change over a period of time show how many times each number occurs show relationship between a data set with two variables list all individual numerical data in condensed form show how elements among sets of data are related
Remember, all data sets can be displayed in more than one way. Examples
Select an appropriate display for each situation.
the change in the winning times for the Kentucky Derby for the last 15 years This data does not deal with categories or intervals. It deals with the change of a value over time. A line graph is a good way to show changes over time. energy usage in the U.S., categorized by the type of user In this case, there are specific categories. If you want to show the specific amount of energy used in each category, use a bar graph. If you want to show how each category is related to the whole, use a circle graph.
Exercises Select an appropriate display for each situation. Justify your reasoning. 1. the cost of homeowners insurance over the past 10 years
2. the amount of federally owned land in each state, arranged in intervals Course 3 • Data Analysis and Statistics