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A company provides home internet networking services and promises customers to be compensated for a delayed service if the service calls cannot be resolved under

A company provides home internet networking services and promises customers to be compensated for a delayed service if the service calls cannot be resolved under three-fourths of an hour. Times for service calls is known to follow a normal distribution with a mean of 35 minutes and standard deviation of 10 minutes. If a service call is completed as promised on time, what is the probability that the service took 5 minutes more than the expected time?

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