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13-02-2018
Mathematics

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There is a bag filled with 5 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it is replaced. Another marble is taken at random. What is the probability of getting 2 of the same colour?

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13-02-2018

The probability is 60% that you will get the same colour twice because one colour has more marbles that the other coloured marble.

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