Which of the following describe continuous random variables? Which describe discrete random variables?
a. The number of newspapers sold by the New York Times each month
b. The amount of ink used in printing a Sunday edition of the New York Times
c. The actual number of ounces in a 1-gallon bottle of laundry detergent
d. The number of defective parts in a shipment of nuts and bolts
e. The number of people collecting unemployment insurance each month