A dentist works from 9am to noon, offering 1 hour appointments on the hour for routine cleanings. The dentist’s schedule is always full so she does not allow walk-ins. If she is free, the dentist begins the appointment when the patient arrives. The dentist finishes with each patient within 50 minutes, and patients arrive at the beginning of their appointment.

Q1. How long on average do patients wait (in minutes)?

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Given that the dentist offers 1hour appointments on the hour and finishes with eac... View the full answer