Carmelo read 38 pages of a book on monday. he read 2/5 of the remainder on tuesday. if he still had 72 pages left to read after tuesday, how many total pages are in carmelo's book

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?