Error bars illustrate the margin of error for a survey estimate by showing how precise that estimate is. Here are some answers to common questions that might help you better understand charts with ...

How consistency ratings work Using fantasy points determined by ESPN's standard scoring, the charts contained in this column ...

Scrambling jets is fast, loud, and expensive. This piece shows the math behind a scramble: fighter hours set the floor, ...

The 2024 update highlights tech like AI, biotech, and quantum computing as vital for national security and economic growth. Governments are looking at how to handle new tech, needing better ...