IB skill practice

Use cumulative binomial probabilities

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

Paper 1, Paper 2 5 marks Difficulty 3

Use cumulative binomial probabilities - interpretation check

For a school athletics dataset, \(X\sim B(8,0.32)\). Calculate \(P(X\le 2)\). Confirm the interpretation before entering the result. 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.