The audiences interviewed were also asked if they had seen the movie before (Never, Once, More than Once): Age Group Under 6 6 to 9 10 to 14 15 to 21 Over 21 Total Never 37 62 90 20 152 Viewing Frequency Once 5 20 41 5 22 More Than Once 3 4 34 0 5 Total 21a Compute the marginal frequency distribution by Viewing Frequency in the column labeled "Total". 21b Compute the marginal frequency distribution by Age Group in the row labeled "Total". 22a What percentage of all audience members are over 21? 22b In the Viewing Frequency group "More Than Once", what percentage are Over 21?

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