Submit ONE Google sheet with different sheets exploring the data sets linked below. Some example visualizations are below - yours don't have to (and shouldn't) be the same - explore for yourselves. I recommend leaving the Decimal Mark data until last, as it requires the most data processing work.
In the Australian population example, I chose to represent population as the size of the dot and the percentage change of population as red-to-green)
Australian State Population (size) and changes in population (colour) - 2017 version
World Population Density
# Data from https://en.wikipedia.org/wiki/Decimal_mark#Hindu.E2.80.93Arabic_numeral_system
# Date retrieved 2017-10-17
# Countries that use Hindu-Arabic numerals and a Decimal Point
Australia
Bangladesh
Botswana
British West Indies
Brunei
Cambodia
Canada
China
Macau
Dominican Republic
Egypt
El Salvador
Ghana
Ghana
Guatemala
Honduras
India
Ireland
Israel
Japan
Jordan
Kenya
Korea, North
Korea, South
Lebanon
Luxembourg
Malaysia
Maldives
Malta
Mexico
Myanmar
Nepal
New Zealand
Nicaragua
Nigeria
Pakistan
Palestine
Panama
Philippines
Puerto Rico
Singapore
Sri Lanka
Switzerland
Taiwan
Tanzania
Thailand
Uganda
United Kingdom
United States
Zimbabwe
# Countries that use Hindu-Arabic numerals and a Decimal Comma
Albania
Algeria
Andorra
Angola
Argentina
Armenia
Austria
Azerbaijan
Belarus
Belgium
Bolivia
Bosnia and Herzegovina
Brazil
Bulgaria
Cameroon
Canada
Chile
Colombia
Costa Rica
Croatia
Cuba
Cyprus
Czech Republic
Denmark
East Timor
Ecuador
Estonia
Faroes
Finland
France
Germany
Georgia
Greece
Greenland
Hungary
Iceland
Indonesia
Italy
Kazakhstan
Kosovo
Kyrgyzstan
Latvia
Lebanon
Lithuania
Luxembourg
Macau
Macedonia
Moldova
Mongolia
Morocco
Mozambique
Namibia
The Netherlands
Norway
Paraguay
Peru
Poland
Portugal
Romania
Russia
Serbia
Slovakia
Slovenia
South Africa
Spain
Sweden
Switzerland
Tunisia
Turkey
Ukraine
Uruguay
Uzbekistan
Venezuela
Vietnam
Not the best design choices!!
CF Same map on Wikipedia (retrieved 2019)