moazzam07
  • moazzam07
The table below shows the number of marbles of different colors in a bag:
Mathematics
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chestercat
  • chestercat
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moazzam07
  • moazzam07
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moazzam07
  • moazzam07
Bryn draws a marble from the bag randomly without looking. He then draws another marble from the bag without replacing the first one. Which expression shows the probability of drawing blue marbles in both the trials? 8 over 13 multiplied by 7 over 13 8 over 13 added to 7 over 12 8 over 13 multiplied by 7 over 12 8 over 13 added to 7 over 13
anonymous
  • anonymous
what is the probability of getting a blue marble before any marble was drawn?

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anonymous
  • anonymous
8 over 13
moazzam07
  • moazzam07
i was gonna say that
anonymous
  • anonymous
after that marble was drawn, the new probability would be 7 over 12
anonymous
  • anonymous
so 8 over 13 * 7 over 12
moazzam07
  • moazzam07
thanks
anonymous
  • anonymous
next question?

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