anonymous
  • anonymous
A bag contains 5 red marbles and 3 yellow marbles. What is the probability of drawing a red marble, then replacing that marble, then drawing a red marble again on the second pick? A. 9/64 B. 15/64 C. 25/64 D. 5/8
Mathematics
schrodinger
  • schrodinger
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radar
  • radar
This is like the problem where it was turned around (3 red and 5 different color) I did that one for you also. In this one the probability of the first drAW is 5/8, Since you replaced the marble, your probability on the second draw is also 5/8. Your probability of doing it TWICE is 5/8 x 5/8 or 25/64 choice C

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