When a patient who is complaining of several specific symptoms arrives at a doctor's office, the doctor who makes the diagnosis says that she is 90% certain that the patient has the flu, it is likely that she is basing her assessment on relative frequency approach of assigning probabilities.

Question

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The relative frequency approach involves using historical data to determine the likelihood of an event occurring. In this case, the doctor may be basing her assessment on how often patients with the same symptoms in the past have been diagnosed with the flu.

When a Patient Who Is Complaining of Several Specific Symptoms