Challenging Questions

Mathematics – Compulsory Part

Learning Unit: More about probability

Question M0-16-10

A bag contains 2 white balls (W) and 2 red balls (R).

• Event A: A randomly selected ball from the bag is white.
• Event B: After removing one ball, a second ball is randomly selected from the remaining three balls and is white.

1. Find the probability of Event A.
2. Find the probability of Event B.
3. Are Events A and B independent?

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