U4.1 Probability Foundations
Define probability via long-run relative frequency. Apply the basic rules: 0 ≤ P(A) ≤ 1, P(S) = 1, complement, addition for mutually exclusive events. Use simulation to estimate probabilities.
What you'll do in this lesson
A voice-first session with the Crimsora tutor on U4.1 Probability Foundations, then targeted practice and FRQs — with the tutor adapting to where you get stuck.