IB skill practice

Use geometric distributions

Calculate the probability that the first success occurs on a specified trial.

Paper 1, Paper 2 5 marks Difficulty 3

Use geometric distributions - technology-output use

In a transport timing survey, the probability of success on each independent trial is \(0.3\). Find the probability that the first success occurs on trial 7. 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.