Answer
$\mu=180$
$\rho=24$
$maximun=230$
$IQR=16$
Work Step by Step
$Fine=100+(y-20)\times5$, where y is the speed of a speeder.
$\mu=100+(28-20)\times10=180$
$\rho=2.4\times10=24$
$maximun=100+(33-20)\times10=230$
$IQR=3.2\times105=32$
Stats Modeling the World, 4th Edition
by Bock, David E.; Velleman, Paul F.; De Veaux, Richard D.
Published by
Pearson
ISBN 10:
0133151549
ISBN 13:
978-0-13315-154-1
Chapter 5 - The Standard Deviation as a Ruler and the Normal Model - Exercises - Page 133: 22
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