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 4 - Probability and Counting Rules - 4-4 Counting Rules - Exercises 4-4: 25

Answer

495, 11,880

Work Step by Step

Total students = 12 If all are assigned same task = 12C4 = 495 If all are assigned diferent tasks = 12P4 = 11,880
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