JotaroKujo3566 JotaroKujo3566
  • 14-07-2017
  • Mathematics
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Exit A bag contains 4 red marbles and 5 blue marbles. If two marbles are chosen at random, one at a time and without replacement, what is the probability of getting two red marbles?

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texaschic101
texaschic101 texaschic101
  • 14-07-2017
4 red, 5 blue...total of 9

P(red) = 4/9
without replacement
P(red) = 3/8

P(2 reds) = 4/9 * 3/8 = 1/6 <==
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