Indicate whether each of these is best modeled as a discrete or continuous random variable: a. The amount of time spent waiting for the CAT bus is DISCRETE or CONTINUOUS? b. The proportion of students who get their registration PIN before their registration window opens. Is DISCRETE or CONTINUOUS? c. The number of books in Cooper library is DISCRETE or CONTINUOUS? d. The volume of water in the reflecting pond is DISCRETE or CONTINUOUS? e. The number of people waiting in line at Chick-Fil-a by Freeman Hall is DISCRETE or CONTINUOUS

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