Mathematics, 05.06.2020 21:57, BigElote

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

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