Final answer:
About 20 percent of U.S. households had never sent an email as reported in 2008, reflecting technological usage patterns at that time. The indicated trends in media consumption also show a move away from traditional news sources among younger Americans.
Step-by-step explanation:
As of 2007, a 2008 report on technology use stated that approximately 20 percent of U.S. households had never sent an email. When considering a random sample of fourteen U.S. households, we let variable X represent the number of households in that sample which have never sent an email.
The statistics provided suggest a shift in the way people access and consume information, with an implication that traditional forms of news such as print newspapers and radio are declining in favor. This can be seen in the downward trend since 1973 for print news, and a similar decline for radio news. At the same time, even though television news had maintained its share, the trend among younger Americans indicates a potential decline in television news consumption, paving the way for perhaps online or alternate forms of media consumption in the future.