6. The following table summaries responses of 91 married couples in Arizona to a question about how often sex is fun. (a) Find and interpret a measure of association by treating both variables as nom inal variables [10 pts] (b) Find and interpret a measure of association by treating both variables as or- dinal variables [10 pts] Wife's Rating of Sexual Fun Husband's Rating Never or Fairly Very Almost Occasionally Often Often Always Never or occasionally 7 7 2 2 Fairly often 2 8 3 7 Very often 1 5 4 9 Almost always 2 8 9 14