1. Topic/Objective: Choosing a data display
Lesson 11.5
Topic/Objective: Choosing a data display
What is the best way to display data?
Can choosing a display help you make decisions?
If the data are numerical, but are just labels and don’t make sense to compare them, then they are not quantitative, but qualitative.

2. Quantitative
Qualitative

3. Its Best Use Bar Graph Circle Graph Histogram Line Graph Line Plot
Type of Display
Its Best Use
Bar Graph
It show the numbers in specific categories
Circle Graph
compares parts of the data to the whole
Histogram
Shows the frequency of data into equal intervals
Line Graph
Shows change over period of time
Line Plot
Shows how many times each number occurs
Pictograph
Shows number of items in specific categories with pictures
Stem and Leaf
List all data in condensed form
Table
List all of the information

4. Bar Graph Objective: Choose the Appropriate Display
_____________ - Shows the number of items in specific categories.
Bar Graph

5. ______________ - Shows the frequency of data that has been organized into equal intervals.
Histogram

6. ______________ - Compares parts of the data to the whole.
Circle Graph

7. ______________ - Shows the number of items in specific categories.
Pictograph

8. ______________ - Shows change over a period of time.
Line Graph

9. ______________ - Shows how many times each number occurs in the data.
Line Plot

10. ___________________- Lists all individual numerical data in a condensed form.
Stem-and-Leaf Plot

11. ______________ -May list all the data individually or by group.
Table

12. Choose an appropriate type of display for each situation.
points scored by individual members of a basketball team compared to the team total
CIRCLE GRAPH
the profits of a company every year for the last ten years
LINE GRAPH, TABLE
the population of the states arranged by intervals
HISTOGRAM

13. The number of students who wish to order each size of T-shirt
TABLE OR BAR GRAPH OR PICTOGRAPH
the amount of sales by different sales people compared to the total sales
CIRCLE GRAPH
average proficiency test score for five consecutive years
LINE GRAPH
amount of fat grams in intervals in various sandwiches
HISTOGRAM

14. How many students are surveyed?
SCHOOL Which graph below could be used to show a greater difference in favorite classes? Which one is misleading? Why?
How many students are surveyed?
Answer: Graph B distorts the data as a broken bar graph.
English appears five times as large as math in graph B where the actual difference is not as large. Graph B because the interval does not start at 0.
Example 7-1b