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26 March, 06:04

A bag has 1 red, 3 blue, and 4 green marbles. Outcome A is drawing a green marble on the first draw. Outcome B is drawing a green marble on the second draw without replacing the first marble.

What is P (B|A) ?

P (B|A) = ?/?

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Answers (1)
  1. 26 March, 08:58
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    After first drawing (if you have drawn a green marble) there are 7 marbles: 1 red, 3 blue, 3 green. P (B|A) = 3/7.
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