F.2 probability
2012-06-01 4:55 am
A bag contains 8 red, 6 green and 10 blue cubes of the same size. Players take turns a cube from a bag. If player A picks a red cube and holds it, what is the probability player B picking a red cube? What about player B choosing a blue cube – would that be different? Explain.The probability of you getting pass marks in next math test is 65%. What are the odds in favor of you passing the next Maths test? A bag contains 11 red and 12 blue balls. A ball is picked at random from the bag. What are the odds in favor of picking a red ball?
回答 (2)
2012-06-06 3:28 am
✔ 最佳答案
The probability of player B picking a red cube is: (8-1)/(8-1+6+10) =7/23 or 30.4%No, the probability of player B chose a blue cube: 10/(8-1+6+10)=10/23 or 43.5%
65/100 =13/20
11/(11+12) = 11/23 or 47.8%
2012-06-01 8:49 pm
conditional probability occurs between dependent events, so it should be different.
odds in favor, in the other word, probability
odds in favor, in the other word, probability
參考: knowledge
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