Pew Research Center collected data on the same 10 political value questions from 1994 to 2014 and combines these responses to place each person on a scale ranging from consistently liberal to consistently conservative. Visit http://www.people-press.org/ 2014/06/12/section-1-growing-ideological-consistency/ \#interactive to see a visualization of responses (in the form of a smoothed histogram), broken down by political party, changing over time. Click "Animate data from 1994-2014" to dynamically watch the distribution of responses changing over time.

(a) Describe what happened to the median Democrat value in the years 1994-2014.

(b) Describe what happened to the median Republican value in the years 1994-2014.

(c) Is there more political polarization (less overlap between parties) in 1994 or 2014 ?

(d) In what year did the two medians start moving rapidly away from each other?

(e) By default, the general population results are shown. Click "POLITICALLY ACTIVE" just above the visualization to see results only for the third of the public who are most politically active. In 2014, are the politically active people more or less politically polarized than the general population?

(f) Read the first two paragraphs of the article. Do you think you learn more from reading the text or from looking at the data visualization?