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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.)
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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kropot72
 one year ago
Best ResponseYou've already chosen the best response.0dw:1437342994266:dw You can use the above probability tree to find the required probability.

kropot72
 one year ago
Best ResponseYou've already chosen the best response.0dw:1437343203097:dw Multiply the two values of probability that are enclosed by the circle.

kropot72
 one year ago
Best ResponseYou've already chosen the best response.0Yes, that is the required probability.
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