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

Published by McGraw-Hill Education

# Chapter 3 - Data Description - Review Exercises - Section 3-2 - Page 179: 18

#### Answer

$82.6\%$

#### Work Step by Step

Use Chebyshev’s theorem. $k=(243-231)/5=2.4$ The minimum percentage is $1-1/2.4^2=0.826$ or $82.6\%$

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