C1. Americans often think of themselves as quite diverse in their political opinions, within the continuum of liberal to conservative. Let’s use GSS 2018 data to investigate the diversity of political views. The percentage distribution shown displays respondents’ selfrating of their political position. (The statistics box is not displayed; cases with no response were removed for this example.)

1. Ho w

m an y categories (K) are we working with?

2. Calculate the sum of the squared percentages, or ΣPct2.

3. What is the IQV for this variable? Do you find it to be higher (closer to 1) or lower

(closer to 0) than you might have expected for political views? Or, to put it another way, did you expect that Americans would be diverse in their political views or more narrowly concentrated in certain categories?