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Mathematics, 03.07.2019 01:30 Rakeem458

Derek and mia place two green marbles and one yellow marble in a bag. somebody picks a marble out of the bag without looking and records its color (g for green and y for yellow). they replace the marble and then pick another marble. if the two marbles picked have the same color, derek loses 1 point and mia gains 1 point. if they are different colors, mia loses 1 point and derek gains 1 point. what is the expected value of the points for derek and mia?
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Derek and mia place two green marbles and one yellow marble in a bag. somebody picks a marble out of...

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