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MathematicsMathematics
15 July, 17:47

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 either a red marble or a green marble is 80%.

The probability of randomly drawing a red marble and then a green marble is 1/6.

The probability of not drawing a blue marble is 20%.

The probability of drawing a green marble is the same as the probability of drawing either a red or a blue marble.

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Answers (1)
  1. 15 July, 21:03
    0
    Number one two and four are true

    1. 3+5=8 and 8 is 80% of ten

    2. the prob of drawing a red marble in the first go is 3/10 x 5/9 (for the probabilty of drawing a green one in the second go) = 1/6

    3. The probability OF drawing a blue marble is 20% (hence false)

    4. 3+2 = 5, the same amount of red and blue marbles together as of green ones
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Home » Mathematics » 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 either a red marble or a green marble is 80%.
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