(a)[2]
Calculate the probability that Harris passes the driving test at the second attempt.
(b)[2]
Calculate the probability that Harris takes no more than three attempts to pass the driving test.
Mathematics 0580 · IGCSE · Probability of combined events
Probability of combined events — practice question
Harris is sitting a driving test. The result of each attempt does not depend on what happened in earlier attempts. The chance that he passes at the first attempt is 0.6. If he is unsuccessful, the chance that he passes any later attempt is 0.75.