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29 December, 15:37

A bag contains 5 green marbles, 8 red marbles, 11 orange marbles, 7 brown marbles, and 12 blue marbles. You choose a marble, replace it, and choose again. WHat is P (red, then blue) ?

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  1. 29 December, 15:42
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    5 + 8 + 11 + 7 + 12 = 43 total marbles

    P (first is red) = 8/43

    replace

    P (second is blue) = 12/43

    P (red, then blue) = 8/43 * 12/43 = 96/1849 <===
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