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Pulsified333

  • one year ago

A foreman for an injection-molding firm admits that on 48% of his shifts, he forgets to shut off the injection machine on his line. This causes the machine to overheat, increasing the probability that a defective molding will be produced during the early morning run from 3% to 21%. The plant manager randomly selects a molding from the early morning run and discovers it is defective. What is the probability that the foreman forgot to shut off the machine the previous night? Probability =

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  1. Pulsified333
    • one year ago
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    @dan815

  2. Pulsified333
    • one year ago
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    @ganeshie8

  3. ganeshie8
    • one year ago
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    try making a tree diagram from the given info

  4. ganeshie8
    • one year ago
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    |dw:1444119127868:dw|

  5. Pulsified333
    • one year ago
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    I got .1008/.1164

  6. Pulsified333
    • one year ago
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    it was right maybe Im just to tired to keep doing this ahahaha

  7. ganeshie8
    • one year ago
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    im getting http://www.wolframalpha.com/input/?i=0.48*0.21%2F%280.48*0.21%2B0.52*0.03%29

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