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Probability a randomly selected service call cost

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Ninety 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 appliances correctly. These service calls cost $50. Service calls for major repairs are more expensive. Sixty percent of service calls for major repairs cost the customer $300 or more. What is the probability that a randomly selected service call cost $300 or more?

The probability a randomly selected service call cost $300 or more is ?

Reference no: EM13944695

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