There are 3 red marbles, 5 green marbles, and 2 blue marbles in a bag. Which of the following are true?


The probability of randomly drawing a red marble and then a green marble is .
The probability of drawing a green marble is the same as the probability of drawing either a red or a blue marble.
The probability of randomly drawing either a red marble or a green marble is 80%.
The probability of not drawing a blue marble is 20%.
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