Probability calculates the unknown tomorrow, statistics reads the yesterday that already happened, turning a pile of numbers x₁,…,xₙ into a conclusion
Module goal. Build the habit of answering questions with data, understand where data comes from and how to sample without bias, laying the raw-material foundation for everything that follows
eastmath.com · 34.1 Starting with Data: Collecting and Sampling · 34.1.1 Why We Do Statistics