A telemarketing firm in a certain city uses a device that dials residential telephone numbers in that city at random. Of the first 100 numbers...

A telemarketing firm in a certain city uses a device that dials residential telephone numbers in that city at random. Of the first 100 numbers dialed, 51% are unlisted. This is not surprising because 48% of all residential phone numbers in this city are unlisted. Explain whether the percentages in bold are either a statistic or parameter.