2. 外语
  3. A bowl contains 20 marbles (8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, wh

A bowl contains 20 marbles (8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, wh

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问题 A bowl contains 20 marbles (8 blue, 6 red, 3 green, 2 yellow, and 1 orange). If you reach in and choose one marble at random, what is the probability that it will be red?
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答案 There is a total of 20 marbles in the bowl, 6 of which are red. If one marble is selected at random, the probability that it will be red is [*] This can be reduced to 3/10
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