Classify each of the following variables as categorical (possibly binary) or quantitative. Also identify the observational unit for each variable. (You will encounter each of these variables later in the book.) a. Whether a roll of toilet paper is hung so that the paper comes out over the top or underneath
b. Whether or not an applicant for graduate school is accepted
c. Ratio of backpack weight to body weight for a college student
d. Whether a person classifies him or herself as a political conservative, moderate, or liberal
e. Whether or not a person has a tattoo
f. Whether or not a participant in a sport suffers an injury in a given year
g. A sport’s injury rate per 1000 participants
h. A state’s rate of automobile thefts per 1000 residents
i. Ounces of liquid in a "small soda" sold at a baseball game
j. Number of "close friends" a person reports having
k. Age of a bride on the wedding day
l. Whether the bride is older, younger, or the same age as the groom in a couple getting married
m. The difference in ages (groom’s age minus bride’s age, which could be negative) of a couple getting married