Repeated trials and binomial probability

Study repeated trials and binomial probability with clearly stated model assumptions. This precalculus practice set develops exact-count and cumulative probabilities while requiring fixed trial count, binary outcomes, constant success probability, and independence. Single-select and multiselect questions contrast valid experiments with sampling and stopping schemes that need other models. Detailed explanations connect the binomial coefficient to possible success positions and use complements efficiently. Probability calculations use small exact models so reasoning remains central, with no normal approximation or formal inference.