Question 571407: Ted performed an experiment which he placed 10 colored marbles into a bag. He then reached in,picked a marble,recorded his color,and replaced it in the bag.He did this a 100 times,and his results were; brown 29,gray 42,green 10,and purple 19. What was the experimental probability of picking a gray marble? 1/42,21/100,2/5,or 21/50.Also what was the theoretical probability of choosing a brown marble? 1/10,2/9,3/10,or 1/2.
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Ted performed an experiment which he placed 10 colored marbles into a bag. He then reached in,picked a marble,recorded his color,and replaced it in the bag.
He did this a 100 times,and his results were; brown 29,gray 42,green 10,and purple 19.
What was the experimental probability of picking a gray marble?
Ans: Based on his results: 42/100 = 21/50
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1/42,21/100,2/5,or 21/50.
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Also what was the theoretical probability of choosing a brown marble? 1/10,2/9,3/10,or 1/2.
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You can't tell the teoretical probability of brown because you do
not know how many of the 10 marbles are brown.
However, the experimental probability of brown is 29/100
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Cheers,
Stan H.
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