Reteach
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
Best Used to
Bar Graph
show the number of items in specific categories
Box-and-Whisker Plot
show measures of variation for a set of data
Circle Graph
compare parts of the data to the whole
Histogram
show frequency of data divided into equal intervals
Line Graph
show change over a period of time
Scatter Plot
show trends in data
Stem-and-Leaf Plot
list all individual numerical data in condensed form
Venn Diagram
show how elements among sets of data are related
When deciding what type of display to use, ask the following questions.
• • •
What type of information is given? What do you want your graph or display to show? How will the graph or display be analyzed?
Remember, all data sets can be displayed in more than one way. And there is often more one appropriate way to display a given set of data.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Examples
Select an appropriate type of display for each situation. Justify your reasoning.
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 type of display for each situation. Justify your reasoning. 1. the cost of automobile insurance over the past 12 years 2. the amount of national park land in each state, arranged in square miles Course 2 • Statistical Displays
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
Best Used to
Bar Graph
show the number of items in specific categories
Box-and-Whisker Plot
show measures of variation for a set of data
Circle Graph
compare parts of the data to the whole
Histogram
show frequency of data divided into equal intervals
Line Graph
show change over a period of time
Scatter Plot
show trends in data
Stem-and-Leaf Plot
list all individual numerical data in condensed form
Venn Diagram
show how elements among sets of data are related
When deciding what type of display to use, ask the following questions.
• • •
What type of information is given? What do you want your graph or display to show? How will the graph or display be analyzed?
Remember, all data sets can be displayed in more than one way. And there is often more one appropriate way to display a given set of data.
Copyright © Glencoe/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
Examples
Select an appropriate type of display for each situation. Justify your reasoning.
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 type of display for each situation. Justify your reasoning. 1. the cost of automobile insurance over the past 12 years 2. the amount of national park land in each state, arranged in square miles Course 2 • Statistical Displays
