Mathematics, 26.05.2021 18:00 tinyiaihfurlow

A bag contains seven red marbles and three blue marbles. You randomly pick a marble and then return it to the bag before picking another marble. Find the probability that both the first and second marbles are red.

A bag contains seven red marbles and three blue marbles. You randomly pick a marble and then return

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A bag contains seven red marbles and three blue marbles. You randomly pick a marble and then return...