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BabydollBlake:
I've asked about 10 people to help me solve this, no one knows how to solve it A bag contains red and blue marbles. In a representative sample of 10 marbles, there are 5 red marbles. If the bag has 180 marbles, predict the number of red marbles in the bag.
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BabydollBlake:
((It's not my question, i'm helping someone out but cant seem to remember how to do it))
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