IB skill practice

Calculate Poisson probabilities

Calculate exact Poisson probabilities from a mean rate.

Paper 1, Paper 2 5 marks Difficulty 5

Calculate Poisson probabilities - official syllabus scenario

A coastal survey records events following \(X\sim\operatorname{Poisson}(2.4)\). Calculate \(P(X=2)\). Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.