IB skill practice

Use cumulative Poisson probabilities

Add Poisson probabilities to answer at-most or at-least questions.

Paper 1, Paper 2 5 marks Difficulty 3

Use cumulative Poisson probabilities - official syllabus scenario

For \(X\sim\operatorname{Poisson}(3.8)\) in a sports analyst, calculate \(P(X\le 2)\). 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.