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A phone number in British Columbia consists of one of four area codes (236, 250, 604, and 778), followed by a 7-digit number that
A phone number in British Columbia consists of one of four area codes (236, 250, 604, and 778), followed by a 7-digit number that cannot begin with a 0 or 1. How many unique phone numbers are there?
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Probability and Random Processes With Applications to Signal Processing and Communications
Authors: Scott Miller, Donald Childers
2nd edition
123869811, 978-0121726515, 121726517, 978-0130200716, 978-0123869814
