Question 1112689: A company sells pencils that are painted blue or green. A package of three pencils from this company has a random mix of these pencils. A person used a simulation to determine the probability that exactly 2 of the 3 pencils in a package are painted green. A coin was used for the simulation, where the side labeled with a “B” represented blue, and the side labeled with a “G” represented green. The results of 30 trials of the simulation are shown below.
GBG BBG BGG BBB GBB GGG
BBB BGB BBG BGG BGG BBG
GBB GGG BBG BBB BGB GGB
BBG GGB BBG GGG GGG GBB
GGB BBB GGB BBG GGG BGG
Based on the simulation, what is the probability that exactly 2 of the 3 pencils in a package are painted green?
A.9/30
B.14/30
C.12/30
D.16/30
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! A company sells pencils that are painted blue or green. A package of three pencils from this company has a random mix of these pencils. A person used a simulation to determine the probability that exactly 2 of the 3 pencils in a package are painted green. A coin was used for the simulation, where the side labeled with a “B” represented blue, and the side labeled with a “G” represented green. The results of 30 trials of the simulation are shown below.
GBG BBG BGG BBB GBB GGG
BBB BGB BBG BGG BGG BBG
GBB GGG BBG BBB BGB GGB
BBG GGB BBG GGG GGG GBB
GGB BBB GGB BBG GGG BGG
Based on the simulation, what is the probability that exactly 2 of the 3 pencils in a package are painted green?
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Ans:: Count the number of triples that have exactly 2 G's.
That is the numerator of the correct answer.
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A.9/30
B.14/30
C.12/30
D.16/30
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Cheers,
Stan H.
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