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28 January, 02:53

Find the probability of each event. There are 4 red marbles, 2 black marbles, and 2 green marbles in a box. P (red) = P (red or black) =

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  1. 28 January, 03:06
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    Answer: P (red) : 1/2

    P (red or black) : 3/4

    Step-by-step explanation: Count the total number of marbles. There are 8. Since there are 4 red marbles out of the 8, put this into a fraction. It will be 4/8, but simplify to 1/2. The P (red) is 1/2.

    Since there are 4 red marbles and 2 black marbles, add them. There are 6 out of the 8 marbles. The fraction is 6/8 simplify to 3/4. The P (red or black) is 3/4.
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