Mathematics, 02.12.2021 18:10 jojoangelique13

There is a bag filled with 4 blue and 5 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 that are different in colour?

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There is a bag filled with 4 blue and 5 red marbles. A marble is taken at random from the bag, the...