1. What is the probability of picking a yellow marble? What is the probability of picking a red marble? 3. What is the probability of picking a blue marble? 4. What is the probability of picking a yellow and red marbles? 5. What is the probability of picking a blue and red marbles?
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1. 1/5
2. 2/5
3. 2/5
For 4 and 5, I assumed without replacement.
4. 2/10 × 4/9 = 4/45
5. 4/10× 4/9 = 8/45
Hope this helps.