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4 February, 12:04

A box contains 720 marbles. The result of 20 marbles pulled at random from the box is given below:

5 red

6 blue

3 green

4 black

2 yellow

Based on this information, how many yellow marbles could be expected in the box?

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Answers (1)
  1. 4 February, 13:54
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    There should be 20 yellow marbles based upon these probabilities because 2/20=0.1 and 0.1*200=20.
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