Read the report Social Media Update 2014 by Pew Research (http://www.pewinternet.org/2015/01/09/social-media-update-2014/). In this survey study, many variables were investigated, and many reported statistics were percentages. One example is to find the proportion of online users who uses Facebook. For this goal of study, the variable is whether an online user uses Facebook, and the parameter is the proportion of all online users who use Facebook. Find another reported percentage that you are interested in this article, and identify the population, sample, parameter, and statistic with respect to the goal of study that you selected. (Hint: The last section "About this survey" on the first page provides details about this survey.)