1 The weight of a fire fighter would be an example of a continuous variable; since a fire fighter's weight could take on any value between 150 and 250 pounds.  Suppose we flip a coin and count the number of heads. The number of heads could be any integer value between 0 and plus infinity.
A postal code is a series of letters and/or digits appended to a postal address for the purpose of sorting mail. Once postal codes were introduced, other applications became possible. In February 2005, 117 of the 190 member countries of the Universal Postal Union had postal code systems.
to send mail and looking up Canada Cities and Canada Addresses Postal Codes. The Postal Code is a unique number that distinguishes cities accross the world. Almost every country uses a Postal Code sytem. The postal code can be formed by using letters and/or numbers; it all depends on the standard chosen by the country.