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anonymous

  • one year ago

What would be the tree diagram for this probability question: A Yellow ball, a red ball, a white ball and a black ball are placed in a barrel. 2 Balls are chosen at random. WILL MEDAL!!!

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  1. anonymous
    • one year ago
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    The first part of the tree diagram represents the first choice of ball, and the parts that branch off that represent the second choice of ball. Note that when you choose the first ball, you cannot choose it again (no replacement).

  2. anonymous
    • one year ago
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    So, it doesn't make a difference in the look of the tree diagram if the balls are being pulled out one at a time or both together??

  3. anonymous
    • one year ago
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    @JE90

  4. anonymous
    • one year ago
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    If you pull out two balls at the same time you can treat it as if you pulled one out first and then then other, so the tree diagram is no different.

  5. anonymous
    • one year ago
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    Ok. I think that was what was confusing me. I had other questions which balls were pulled out at the same time and I wasn't sure if it was different or not. Thanks for your help!! :)

  6. anonymous
    • one year ago
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    No problem! :)

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