anonymous
  • anonymous
A bag contains 30 red tiles, 15 green tiles, and 5 yellow tiles. One tile is drawn and then replaced. Then a second tile is drawn. What is the probability that the first tile is yellow and the second tile is green? A. 1% B. 3% C. 6% D. 18%
Mathematics
katieb
  • katieb
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anonymous
  • anonymous
Total outcome 30 + 15 + 5 = 50 50C1 P(yellow) = 5C1 / 50C1 p(green) = 15C1 / 50C1 Total Prob = P(yellow) + p(green)
anonymous
  • anonymous
To find % multiply by 100
campbell_st
  • campbell_st
find the probabilities of each colour as a fraction then substitute the specific colour probability into the right hand side and multiply. P(Yellow then Green) = P(Yellow) x P(Green) lastly convert the fraction to a percentage

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anonymous
  • anonymous
huh...Sorry it is P(yellow) x p(green)

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