Making Sense of Numbers

Data analysis and statistics help us organize, interpret, and draw conclusions from data. On the SAT, you'll see charts, tables, and scatterplots.

Key Skills

• Mean (Average): Add all numbers, divide by how many there are.
• Median: The middle value when numbers are in order.
• Mode: The number that appears most often.
• Range: Difference between highest and lowest values.

Interpreting Graphs

Look for trends, outliers, and what the data tells you. Is the data increasing? Are there any unusual points?

Real-World Connection

• Sports stats (batting averages, scores)
• Tracking daily temperatures
• Survey results about favorite foods

Quick Tips

• Don’t just look at the numbers—look at what they mean!
• Double check for units and labels on graphs.