Chart assignment
Charts to read and discuss
Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.
Chart 1 of 2 · College football
How often do ranked college football teams lose to unranked teams?
The interactive chart needs JavaScript. The numbers are on the chart's page.
Unranked FBS teams won 19.7% of their games against AP Top 25 teams in 2025. The share has ranged from 4.5% in 1998 to 25.9% in 2007, and has usually been higher since 2000 than in the 1990s. A team counts as ranked if it was in the AP poll that stood before the game; bowl games count, and games against lower-division (FCS) teams don't. The chart starts in 1989, when the AP poll began ranking 25 teams every week.
Questions to discuss
- In one sentence of your own, what does this chart show?
- Find the biggest change or difference in the chart. What might explain it?
- Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?
Source: CollegeFootballData.com, college football games and AP Top 25 polls (CollegeFootballData.com terms of use (factual data, credited to CollegeFootballData.com)) · Data as of Jan 20, 2026
Open the chart and its numbersChart 2 of 2 · World
How fast has the world come online?
The interactive chart needs JavaScript. The numbers are on the chart's page.
73.6% of the world's people used the internet in 2025, up from 15.6% in 2005, the first year the World Bank gives a world figure. It counts people who used the internet at least once in the previous three months. The world figures are estimates by the International Telecommunication Union.
How to read this chart
Each point is the share of the world's people who used the internet at least once in the previous three months, as estimated by the International Telecommunication Union. The axis starts at zero, so the height shows the true share. The steeper the line, the faster people were coming online.
Questions to discuss
- About what share of the world was online in the first year on the chart, and in the latest year?
- Did the share grow faster in some years than others? What could have sped it up?
- Using the internet once in three months counts here. What does this number leave out about how people get online?
Source: World Bank, World Development Indicators: Individuals using the Internet (% of population) (CC BY 4.0 (credit the World Bank)) · Data as of Dec 31, 2025
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