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 3 · Inflation
How much does a dozen eggs cost in the US?
The interactive chart needs JavaScript. The numbers are on the chart's page.
A dozen grade A large eggs averaged $2.27 in September 2026. The record so far is $6.23 in March 2025; prices spiked in 2023 and 2025 when bird flu cut the number of laying hens. Prices are BLS averages across US cities since 1980, when this series begins, in dollars of the day, not adjusted for inflation. October 2025 is missing because a lapse in federal funding stopped data collection.
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: U.S. Bureau of Labor Statistics, CPI Average Price Data (eggs, grade A, large) (Public domain (U.S. government work)) · Data as of Sep 30, 2026
Open the chart and its numbersChart 2 of 3 · World
What share of people use the internet in each country?
The interactive chart needs JavaScript. The numbers are on the chart's page.
In 2024, 94.7% of people in the United States used the internet and 64.9% in India. The highest share was 100%, and the lowest 8.6%, in Burundi. 182 countries and territories had a 2024 figure. It counts people who used the internet at least once in the previous three months; places without a 2024 figure are left out.
How to read this chart
Each bar is the share of a country's people who used the internet in the previous three months. The dashed line is the whole world. The chart opens on the top and bottom of the ranking; search for a country to find its bar among the rest.
Questions to discuss
- Find the United States and one country on another continent. How far apart are their shares?
- What do the countries at the bottom of the ranking have in common? What might keep people there offline?
- The world figure is closer to the bottom than many rich countries are to the top. Why might that be?
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, 2024
Open the chart and its numbersChart 3 of 3 · Income and poverty
What is the typical household income in each state?
The interactive chart needs JavaScript. The numbers are on the chart's page.
In the Census Bureau's 5-year survey ending in 2024, the typical household in District of Columbia earned $109,870 a year, the most, followed by Massachusetts ($103,960) and Maryland ($103,678). Mississippi was lowest at $56,447, and the U.S. median was $80,734. These are 5-year estimates in 2024 dollars, each with a margin of error.
How to read this chart
Each bar is the median household income in a state: half of households earn more and half earn less. The dashed line is the whole U.S., for comparison. These are survey estimates, and each has a margin of error: the true value is likely within that range, so states with overlapping ranges may not really differ.
Questions to discuss
- Find your state. Is it above or below the U.S. median, and by about how much?
- Why do statisticians often use the median instead of the average (mean) for income?
- Housing and groceries cost more in some states. What would you need to know to compare what these incomes can buy?
Source: U.S. Census Bureau, American Community Survey 5-year estimates (Public domain (U.S. government work). This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.) · Data as of Dec 31, 2024
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