1. First, determine whether you should describe each of the following variables using the mean or frequency/percentage information. Hint: consider the scale of measurement for each variable: is it categorical or continuous?
   1. pet_owner
   2. double_major
   3. year_recoded
   4. sport_recoded
   5. shoes (pairs of shoes owned)
   6. drinks (caffeinated drinks consumed on an average day)
   7. sleep (hours of sleep on an average night)
   8. social_media (hours of social media on an average day)