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Pulsified333

  • one year ago

You ask a neighbor to water a sickly plant while you are on vacation. Without water the plant will die with probability 0.85. With water it will die with probability 0.4. You are 86 % certain the neighbor will remember to water the plant. You come back from the vacation and the plant is dead. What is the probability that the plant died because neighbor forgot to water it?

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  1. Pulsified333
    • one year ago
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    @dan815

  2. dan815
    • one year ago
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    |dw:1444111732347:dw|

  3. dan815
    • one year ago
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    okay so this plant died u are in dead space now

  4. dan815
    • one year ago
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    |dw:1444111816638:dw|

  5. dan815
    • one year ago
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    |dw:1444111829884:dw|

  6. Pulsified333
    • one year ago
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    right

  7. dan815
    • one year ago
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    same as the pr(B|b) question from earlier

  8. Pulsified333
    • one year ago
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    can i show you what I did?

  9. dan815
    • one year ago
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    |dw:1444111893768:dw|

  10. Pulsified333
    • one year ago
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    (.34*.85)/((.34*.85)+(.6*.86)

  11. Pulsified333
    • one year ago
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    wait why .14?

  12. dan815
    • one year ago
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    i want to see tthe chance he didnt remember and died

  13. Pulsified333
    • one year ago
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    oh

  14. dan815
    • one year ago
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    so (not remember and died )/died

  15. dan815
    • one year ago
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    heres a way to picture it

  16. dan815
    • one year ago
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    |dw:1444112105940:dw|

  17. dan815
    • one year ago
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    |dw:1444112143861:dw|

  18. dan815
    • one year ago
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    now u wanna know the change he forgot and it died

  19. Pulsified333
    • one year ago
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    the answer is wrong

  20. dan815
    • one year ago
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    chance

  21. dan815
    • one year ago
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    look at the picture

  22. Pulsified333
    • one year ago
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    yeah I am

  23. dan815
    • one year ago
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    so there u have the 2 areas with the dead face in that thats the space u are look at

  24. Pulsified333
    • one year ago
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    Got it :D thanks man

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