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Business & Finance
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Question description

I do not quite understand how to do this problem, I really need some help on this one. Please

 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 appliance correctly. These service calls cost ​$85. Service calls for major repairs are more expensive. Seventy 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

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(Top Tutor) Daniel C.
School: UCLA
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