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Aleksandr-060686 [28]
4 years ago
14

A bag contains 3 red marbles and 4 blue marbles. then, 2 marbles are drawn from the bag, at random, "without replacement". if th

e first marble drawn is red, what is the probability that the second marble is blue
Mathematics
1 answer:
faltersainse [42]4 years ago
7 0

3 + 4 +2  = 9 total marbles

 If you pick a red one first and don't replace it that leaves a total of 8 marbles left

 there are 4 blue marbles

 so probability = 4/8, reduces to 1/2 probability of picking a blue marble

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Step-by-step explanation:

<u>Right Triangles</u>

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3 years ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

3 0
3 years ago
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