Mathematics for IGCSE & O level - Probability (Section 3 - No. 17)
In a bag, there are 5 green balls, 3 red balls, and 2 yellow balls. If Jai chooses a ball at random, replaces it, and then chooses again, what is the probability that both of Jai's choices are red?
9/100
3/25
1/25
3/5
Explanation
The probability of choosing a red ball is 3/10. Since the ball is replaced, the events are independent. The probability of choosing a red ball twice is (3/10) * (3/10) = 9/100 = 3/25.
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