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hockeychick23

  • one year ago

You're taking a multiple-choice exam and you don't know the answers to two of the questions. Each question has four choices, so the probability of getting a question right by guessing is .25. Draw a tree diagram showing the probabilities of getting none, one, or both questions right by guessing.

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  1. welshfella
    • one year ago
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    |dw:1433149828030:dw|

  2. welshfella
    • one year ago
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    can you continue?

  3. welshfella
    • one year ago
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    r = getting q right w = getting q wrong

  4. hockeychick23
    • one year ago
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    yea, this is what i got but i just wanted to make sure i got it correct:

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  5. welshfella
    • one year ago
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    that's spot on

  6. hockeychick23
    • one year ago
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    ok :) thanks so much!

  7. welshfella
    • one year ago
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    yw

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