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USA TODAY® Related Activities
USA TODAY Related
Activities provides activities related to the concept of the lesson
as well as up-to-date Snapshot data.
Fishy Data
Materials: calculator,
grid paper for making graphs
Work alone or in a group of two or three.
The table shows the estimated number of pet fish
owned in each of ten countries in 2000. These countries are the top
ten owners of pet fish in the world. The table also shows the 2000 human
population for each of the ten countries.
| Country |
Estimated
Pet Fish Population |
Human
Population |
| China |
111,477,500 |
1,261,832,000 |
| United
States |
103,400,000 |
275,563,000 |
| Germany |
50,000,000 |
82,797,000 |
| Japan |
35,200,000 |
126,550,000 |
| Italy |
29,000,000 |
57,634,000 |
| France |
27,000,000 |
59,330,000 |
| United
Kingdom |
26,600,000 |
59,508,000 |
| Russia |
20,500,000 |
146,001,000 |
| Australia |
12,400,000 |
19,165,000 |
| Sweden |
9,390,000 |
8,873,000 |
Source: Euromonitor and The World Almanac and Book
of Facts
Procedure for the Activity
| Step 1 |
Make a bar graph
that shows the pet fish population for each country.
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| Step 2 |
Make a bar graph
that shows the human population for each country.
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| Step 3 |
Can you find a counterexample
for the following statement? If so, name the counterexample.
The greater the human population of a country, the greater the
pet fish population.
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| Step 4 |
Find the ratio of
the number of people to the number of pet fish for each country.
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| Step 5 |
Can you find a counterexample
for the following statement? If so, name the counterexample.
As the human population of the countries becomes smaller, the
ratio of the number of people to the number of pet fish decreases.
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| Step 6 |
Find the ratio of
the number of pet fish to the number of people for each country.
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| Step 7 |
Can you find a counterexample
for the following statement? If so, name the counterexample.
As the human population of the countries increases, the ratio
of the number of pet fish to the number of people decreases.
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| Step 3 |
Make a circle graph
for 2002 population data.
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| Step 4 |
For the graph you
made in Step 3, use the categories to identify any arcs that are
congruent.
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| Step 5 |
Use the projected
population data for 2050. Find the percent of the total world population
represented by each of the seven countries or categories. Be sure
to include a category named Other for the population of all other
countries. Round the percents to the nearest whole number.
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Wrapping Up the Activity
In this activity, you compared patterns in two data
sets to determine counterexamples for given statements. Did the bar
graphs help you to find counterexamples more easily? Would another type
of graph have helped you more? Or, is using a table of data the easiest
method for finding counterexamples? Write a paragraph describing the
method that you prefer to use to find a counterexample that compares
two sets of data.
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