Moviegoers and ethnicity. The Motion Picture Association of America studies the ethnicity of moviegoers to understand changes in the demographics of moviegoers over time. Here are the numbers of moviegoers (in millions)

classified as to whether they were Hispanic, African-

American, Caucasian, and Other for the year 2010. Also included are the numbers for the general U.S. population and the number of tickets sold.

Caucasian Hispanic African-
American Other Total Population 204.6 49.6 37.2 18.6 310 Moviegoers 88.8 26.8 16.9 8.5 141 Tickets 728 338 143 91 1300 Total 1021.4 414.4 197.1 118.1 1751

a) Compare the conditional distribution of Ethnicity for all three groups: the entire population, moviegoers, and ticket holders.

b) Write a brief description of the association between population groups and Ethnicity.