Posted by **Fran** on Thursday, March 4, 2010 at 8:57am.

Over a one-year period, it is observed that on approximately five percent of the days, a particular public telephone in a remote part of an airport is not used at all. On ninety-five percent of the days it is used, but the number of users is not known. Make a reasonable estimate of the average number of users per day of that particular phone.

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