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14 August, 20:49

There are 4 red marbles and 8 green marbles in a box. If Emma randomly selects a marble from the box, what is the probability of her selecting a red marble?

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  1. 14 August, 20:59
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    The probability of a successful event is the ratio of the number of successful events to the total number of events. In this case, a successful event is selecting a red marble from the box. The total number of events is the total number of marbles in the box:

    Red marbles/Total number of marbles

    4/12 divide

    =1/3
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