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azamat
3 years ago
11

What is the probability of drawing yellow marble followed by a red marble from a bag containing 12 yellow marbles, 16 red marble

s, and 15 green marbles if the first marble is not replaced?
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
5 0

12 +16 +15 = 43 total marbles

12 are yellow so first pick you have 12/43 probability of picking yellow

 without replacement there would be 42 marbles left

 there are 16 red ones so you  have a 16/42, reduces to 8/21 probability of picking red

 probability of picking yellow then red =

12/43 x 8/21 = 96/903, reduces to 32/301 probability

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