Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition

Published by McGraw-Hill Education
ISBN 10: 0078136334
ISBN 13: 978-0-07813-633-7

Chapter 1 - The Nature of Probability and Statistics - Critical Thinking Challenges - Page 37: 1


Several variables can be used: 1. the number of airplanes take off everyday, discrete variable. 2. the number of airplanes land everyday, discrete variable. 3. the number of passengers board airplanes everyday, discrete variable. 4. the number of passengers get off the airplanes everyday, discrete variable. 5. the amount of fuel needed to refill airplanes everyday, continuous variable.

Work Step by Step

World’s Busiest Airports A study of the world’s busiest airports was conducted by Airports Council International. Describe three variables that one could use to determine which airports are the busiest. What units would one use to measure these variables? Are these variables categorical, discrete, or continuous?
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