SOLUTION: A bag contains 3 red marbles, 5 green marbles, and 2 blue marbles. Two consecutive draws are made from the bag(without replacement of the first draw). Find the probability of ea

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Question 837542: A bag contains 3 red marbles, 5 green marbles, and 2 blue marbles. Two consecutive draws are made from the bag(without replacement of the first draw). Find the probability of each event: a. P(red,blue) b. P(blue,blue) c. P(red,not red)
Answer by Edwin McCravy(20060) About Me  (Show Source):
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A bag contains 3 red marbles, 5 green marbles, and 2 blue marbles. Two consecutive draws are made from the bag(without replacement of the first draw). Find the probability of each event: a. P(red,blue) b. P(blue,blue) c. P(red,not red)
P(red 1st then blue 2nd) = %283%2F10%29%282%2F9%29 = 6%2F90 = 1%2F15

P(blue 1st then blue 2nd) = %282%2F10%29%281%2F9%29 = 2%2F90 = 1%2F45

P(red 1st then not red 2nd) = %283%2F10%29%287%2F9%29 = 21%2F90 = 7%2F30

Edwin