23-04-2015
Mathematics

Answered

There are 9 red gumballs, 5 green gumballs, 8 yellow gumballs, and 8 blue gumballs, what is the probability of choosing green then yellow. please explain how you got your answer.

Answer :

konrad509 konrad509

23-04-2015

9+5+8+8=30 <-- all balls

The probability of choosing green ball is [tex]\dfrac{5}{30}=\dfrac{1}{6}[/tex]
The probability of choosing yellow ball is [tex]\dfrac{8}{30}=\dfrac{4}{15}[/tex]

So, the probability of choosing green ball and then yellow one is [tex]\dfrac{1}{6}\cdot\dfrac{4}{15}=\dfrac{2}{45}[/tex]

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