Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Mar 2018 My Price 5.00

U.S. Post Office

1. A telephone area code is a three-digit number that begins with a digit from 2 through 9. The second digit can be any number from 1 through 8 or 0. The third number must be different from the second. How many area codes are possible, according to these rules?

2. A few years ago, the U.S. Post Office added the “zip plus 4” to the original five-digit zip codes. For example, the zip code for the national headquarters of the American Red Cross is now 20006-5310. For this problem, assume that a zip code can be any five-digit number except 00000 and that the four-digit “plus 4” can be any number except 0000.

a. Assume that the U.S. population is roughly 300 million. If all possible five-digit zip codes are used, what is the average number of people per zip code?

b. If all possible “zip plus 4” codes are used, what is the average number of people per “zip plus 4”?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 21 Mar 2018 05:03 AM My Price 5.00

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