Hamilton Stephens
05/31/2024 · Primary School
2. There are only red marbles and green marbles in a bag. There are 5 red marbles and 3 green marbles. Dwayne takes at random a marble from the bag. He does not put the marble back in the bag. Dwayne takes at random a second marble from the bag.
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The probabilities of the different outcomes when Dwayne picks two marbles without replacement are:
- Red first, Red second: \( \frac{5}{14} \)
- Red first, Green second: \( \frac{15}{56} \)
- Green first, Red second: \( \frac{15}{56} \)
- Green first, Green second: \( \frac{3}{28} \)
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