Exam-Style Question on Probability
A mathematics exam-style question with a worked solution that can be revealed gradually
Question id: 592. This question is similar to one that appeared on an IB AA Standard paper in 2021. The use of a calculator is not allowed.
Bag A contains 6 green tickets and 5 blue tickets.
Bag B contains 4 green tickets and 1 blue tickets.
(a) A bag is chosen at random and a ticket is drawn. Find the probability that the ticket is green.
Let J be the event that "bag A is chosen" and let K be the event that "a green ticket is drawn".
(b) Determine whether events J and K are independent.
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