Overview

Data is information collected about the world around us, and it comes in two main forms: qualitative data (descriptions and observations) and quantitative data (numbers and measurements). Metrics and KPIs are tools we use to track and measure performance, helping us understand whether we're meeting our goals and making progress toward key results.

Key Points

• Data is raw information collected through observation, measurement, or research that helps us understand and make decisions
• Qualitative data describes qualities and characteristics using words, while quantitative data uses numbers and can be measured mathematically
• Metrics are specific measurements we track to monitor performance in any area, from sports statistics to business operations
• KPIs (Key Performance Indicators) are the most important metrics that directly show whether we're achieving our main objectives
• Key Results are the specific outcomes or goals we want to achieve, and metrics help us measure our progress toward them

Why This Matters

Understanding data and metrics is essential in today's world, where decisions in business, science, sports, and public policy are increasingly based on evidence rather than guesswork. Learning to collect, interpret, and use data effectively prepares you for careers across nearly every field and helps you make better-informed decisions in your own life.

Suggested Next Steps

• Data Collection and Sampling Methods
• Data Visualization and Interpretation
• Statistical Analysis and Probability

Sources

• Introduction to Statistics and Data Analysis
• The Lean Startup: How Today's Entrepreneurs Use Continuous Innovation