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.

  1. What does any public company report in revenue, profit, cash and buybacks?
  2. What is the typical household income in each state?

Chart 1 of 2 · Companies

What does any public company report in revenue, profit, cash and buybacks?

The interactive chart needs JavaScript. The numbers are on the chart's page.

Type any U.S.-listed company's name or ticker to see its revenue, profit, cash and stock buybacks each fiscal year, exactly as it reported them to the SEC, with a link to every filing. Apple, shown first, had revenue of $479 billion in fiscal 2026, up from $24 billion in fiscal 2007. The figures start around 2007, when companies began filing their numbers in a form computers can read (XBRL), and each year is the figure first reported, not a later restatement. Fiscal years are named by the year they end in, which can differ from a company's own name for them.

Questions to discuss

  1. In one sentence of your own, what does this chart show?
  2. Find the biggest change or difference in the chart. What might explain it?
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

Source: U.S. Securities and Exchange Commission, EDGAR company financial data (XBRL) (Public domain (U.S. government work)) · Data as of Sep 26, 2026

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Chart 2 of 2 · 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

  1. Find your state. Is it above or below the U.S. median, and by about how much?
  2. Why do statisticians often use the median instead of the average (mean) for income?
  3. 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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