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12) A bag contains 9 red, 5 yellow, and 4 blue marbles. What is the probability of pulling out a blue marble, followed by a red marble, without replacing the blue marble first?

Respuesta :

red marbles = 9

yellow marbles = 5

blue marbles = 4

total marbles = 9 + 5 + 4 = 18

The probability of pulling out a blue marble, followed by a red marble without replacing the blue marble first can be calculated below

[tex]\frac{4}{18}\times\frac{9}{17}=\frac{36}{306}=\frac{12}{102}=\frac{6}{51}[/tex]

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