Which of the following describes an atrium? . a.. tiny pieces of colored tile arranged to form a picture or design. b.. a large, airy room inside the main entrance of a wealthy roman's home. c.. the center where people meet to visit and conduct business. d.. stone channels used to carry water into the city from the surrounding hills.

Airline companies are interested in the consistency of the number of babies on each flight, so that they have adequate safety equipment. suppose an airline conducts a survey. over weekend, it surveys 6 flights from boston to salt lake city to determine the number of babies on the flights. it determines the amount of safety equipment needed by the result of that study.