AdvancedMultiple choice
Which bag was it? · Part 3 of 3
Bag A holds 8 blue and 4 red balls; bag B holds 4 blue and 8 red. A fair coin picks one bag, and you draw from it without seeing which.
Now the three draws are made with replacement, and again you see two blue and one red. What is the probability of bag B?
- A0.30, as in the previous part
- B1/3
- C1/5
- D0.25, because three draws should sharpen the answer
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