Two reds in a row from a shrinking urn
An urn has 4 red and 6 blue balls. You draw without replacement until you have drawn two balls. What is the probability that both are red? (to 3 decimals)
Show hints (2)+
- The second draw is conditional on the first.
- Multiply 4/10 by 3/9.
Answer
Reveal answer →Final answer
0.133 (± 0.01)
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