Mathematics, 29.03.2021 23:20, Mads7218

John had 8 blue marbles and 4 red marbles in a bag. He took 1 marble from the bag and then replaced it and then took a second marble. What is the probability that John selected a red marble and then red again?

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John had 8 blue marbles and 4 red marbles in a bag. He took 1 marble from the bag and then replaced...