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antoniya [11.8K]
3 years ago
11

. a bag contains 2 white marbles and seven purple marbles. Two marbles are drawn at random. One marble is drwan and not replaced

. Then a second marble is drawn.
1. what is the probability of selecting a purple marble and then a white marble?
2. what is the probability of selecting two white marbles?
3. is there a greater chance of selecting two white marbles in a row or two purple marbles in a row? Show your work.
Mathematics
1 answer:
Mashutka [201]3 years ago
7 0
1) the probability of drawing a white marble is 1 out of 9. purple is 8out of 9
2) the probability of drawing two white marbles is 2out of 9
3) two purple because every time you draw if you put it back in the probability doesn't change
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Then, you must simplify both sides of the equation.

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Next, subtract 3x on both sides.

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