Mathematics: Analysis and Approaches · Topic 4: Statistics and probability

SL4.8 — The binomial distribution

Mathematics: Analysis and Approaches · SL / HL · syllabus-mapped notes

1. When the binomial distribution applies

   The conditions for a binomial model and the notation X ~ B(n, p).

2. Binomial probabilities using technology

   Finding P(X = x) and cumulative probabilities with a GDC.

3. Mean and variance of the binomial

   The results E(X) = np and Var(X) = np(1 - p).