3.11 Wireless telephones. Each boldface number in the next paragraph is the value of either a parameter or a statistic. In each case, state which it is.
The Behavioral Risk Factor Surveillance System (BRFSS) telephone survey is conducted annually in the United States. Of the first 100 numbers dialed, 55 numbers were for wireless telephones. This is not surprising, because, as of the first half of 2014, 52.1% of all U.S. children lived in households that were wireless only.