Movies. The following table shows the number of films in each MPAA (www.mpaa.org) rating by year for each of the years between 2006 and 2015. (Data extracted from Movies 06-15)

Year NC-17 R PG-13 PG G Not Rated 2015 0 228 148 60 11 347 2014 1 224 143 64 12 291 2013 1 217 144 50 10 283 2012 2 218 140 62 14 273 2011 2 223 143 71 19 255 2010 2 194 82 48 5 207 2009 0 183 143 64 16 118 2008 2 233 165 58 18 240 2007 1 242 144 84 14 261 2006 0 221 140 66 16 274

a) What percent of all these films are G rated?

b) What percent of all films in 2008 were G rated?

c) What percent of all films were PG-13 and came out in 2012?

d) What percent of all films produced in 2009 or later were PG-13?

e) What percent of all films produced from 2006 to 2009 were rated PG-13, R or NC-17?

f) Compare the conditional distributions of the ratings for films produced in 2011 or later to those produced from 2006 to 2010. Write a couple of sentences summarizing what you see.