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A bag of marbles contains 11 blue marbles, 4 green marbles, and 5 purple marbles. What is the probability of drawing a green marble, removing it, and then drawing a purple marble?

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wegnerkolmp2741o

Answer:

1/19

Step-by-step explanation:

11 blue marbles, 4 green marbles, and 5 purple marbles = 20 marbles

P( green) = green / total = 4/20 = 1/5

Now keep the green

11 blue marbles, 3 green marbles, and 5 purple marbles = 19 marbles

P(purple) = purple/ total = 5/19

P(green, keep,purple) = 1/5 * 5/19 = 1/19

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