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anonymous

  • one year ago

Sixty percent of service calls regarding kitchen appliances involve a minor repair. For​ example, the customer did not read the instructions correctly or perhaps failed to connect the appliance correctly. These service calls cost ​$75. Service calls for major repairs are more expensive. Eighty percent of service calls for major repairs cost the customer ​$200 or more. What is the probability that a randomly selected service call costs ​$200 or​ more? The probability a randomly selected service call costs ​$200 or more is nothing. ​(Type an integer or a​ decimal.)

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  1. kropot72
    • one year ago
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    |dw:1437342994266:dw| You can use the above probability tree to find the required probability.

  2. kropot72
    • one year ago
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    |dw:1437343203097:dw| Multiply the two values of probability that are enclosed by the circle.

  3. anonymous
    • one year ago
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    0.32

  4. kropot72
    • one year ago
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    Yes, that is the required probability.

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