Mathematics, 18.12.2020 01:40 aaayymm
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1] If you pick a marble out of a bag that had 2 yellow, 3 green, 4 black and 1 red, record its color, and return it to the bag 200 times, how many times can you expect to pick a marble other than black?
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2] There are 3 red shirts, 4 blue shirts, 1 black shirt and 2 grey shirts hanging in a closet. What is the probability that a shirt other than blue will be picked?
Answers: 3
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1] If you pick a marble out of a bag that had 2 yellow, 3 green, 4 black...
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