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7 April, 08:01

Bag contains 50 marbles, 10 of which are blue, 8 are red, 20 are green, and 12 are purple. Marcie takes a ow marble out of the bag, records the color and returns it to the bag how many red marbles should she expect after 500 trials

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  1. 7 April, 10:58
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    Probability of pick a red marble in one draw = 8 / 50

    expected number of red marbles in 500 trial = 8 * 500 / 50 = 80 answer
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