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17-06-2020
Mathematics

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A bag contains 4 blue and 6 green marbles. Two marbles are selected at random from the bag. If the first marble is not replaced before the second marble is drawn, what is P(blue second | green first)?

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17-06-2020

It would be a 3:2 chance the first one picked was green and 5:4 chance the second is also green. Hope this helps.

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