You should be prepared for a train to appear at a railroad crossing a. between 2 a. m. and 6 a. m. b. between 6 p. m. and 10 p. m. c. at any time d. at night

Little's law can be applied to any part of the store, such as a particular department or the checkout lines. the store owner determines that, during business hours, approximately 84 shoppers per hour make a purchase and each of these shoppers spend an average of 5 minutes in the checkout line. at any time during business hours, about how many shoppers, on average, are waiting in the checkout line to make a purchase at the good deals store?