Answer
5.5
Work Step by Step
Find the quadratic mean of 8, 6, 3, 5, and 4.
Apply the formula: quadratic mean=$\sqrt {\frac{8^2+6^2+3^2+5^+4^2}{5}}=5.5$
Elementary Statistics: A Step-by-Step Approach with Formula Card 9th Edition
by Bluman, Allan
Published by
McGraw-Hill Education
ISBN 10:
0078136334
ISBN 13:
978-0-07813-633-7
Chapter 3 - Data Description - 3-1 Measures of Central Tendency - Extending the Concepts - Page 127: 38
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